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	Who Are the Y Combinator Companies?
		Y Combinator’s investment is not so much in money as it is in the experience and connections the group provides to the teams, often shared over their weekly dinners.
		Y Combinator a ‘farm team’ seed funder for greenhorns all of which are Web 2.0 wannabes that would have no chance of making it without a ’seed hedge fund’ manager.
		Y Combinator may be able to get college students excited about $2000/mo in living expenses, but it costs quite a bit more than that to attract trained professionals and to prototype products that are more capital intensive to build.
	www.techcrunch.com /2006/11/09/the-y-combinator-companies (3518 words)

	Wired News: Stars Rise at Startup Summer Camp
		The sophomores were just one of eight groups selected for three months of summer seed funding from Y Combinator, a startup incubator founded by Paul Graham, a writer and programmer known for creating the first web application.
		Y Combinator took care of the paperwork, including employee agreements and incorporation, and in return for the money and advice received a 5 percent to 7 percent stake in each venture.
		Y Combinator's point is not just to make money, but also to convince others to fund and start small companies of their own, according to Graham.
	www.wired.com /news/technology/0,1282,68710,00.html (1139 words)

	Fixed point combinator
		A fixed point combinator (or fixed-point operator) is a higher-order function which computes a fixed point of other functions.
		One well-known (and perhaps the simplest) fixed point combinator in the untyped lambda calculus is called the Y combinator.
		Note that the Y combinator is intended for the call-by-name evaluation strategy, since (Y g) diverges (for any g) in call-by-value settings.
	www.1bx.com /en/Y_combinator.htm (720 words)

	Running a Hatchery for Replicant Hackers - New York Times
		Y Combinator is not so much an incubator as a hatchery for baby companies, and as with all things spawned in bulk, some will die, some will flourish and some will eke by.
		Y Combinator relies on certain premises: that open-source software and falling hardware prices means that tech start-ups are cheap to finance; that large companies are no longer at the forefront of innovation; and that mature technology companies find it cheaper to buy than to build.
		Y Combinator is a company that creates other companies — a sly reference that would elicit a smile from a very narrow set of people, but luckily the same set that the company is trying to appeal to.
	www.nytimes.com /2006/02/21/business/businessspecial2/21startup.html?ex=1298178000&en=78502f24e4a8fc38&ei=5090&partner=rssuserland&emc=rss (1316 words)

	Fixed point combinator - Definition, explanation
		A fixed point combinator is a function which computes fixed pointss of other functions.
		Y is a function with the property that f(Y(f)) = Y(f) for all functions f.
		The function labels Y, H, FACT, PRED, MULT, ISZERO, 1, 0 (defined in the article for lambda calculus) are meta-labels, to which correspond meta-definitions and meta-equations, and with which a user can perform algebraic meta-substitutions.
	www.calsky.com /lexikon/en/txt/f/fi/fixed_point_combinator.php (508 words)

	Y Combinator: What We Do
		Y Combinator has a novel approach to seed funding: we fund startups in batches.
		During those three months we host a dinner once a week at Y Combinator, and at each dinner we invite an expert in some aspect of startups to speak.
		We seem to have succeeded in creating a good environment, because many founders have told us that the first ten weeks of Y Combinator were the most productive period of their lives.
	ycombinator.com /about.html (1361 words)

	Spark's Pensieve - What is the Y combinator? (Site not responding. Last check: 2007-10-08)
		To start thinking about the Y combinator, think about things this way – suppose the parameter ‘fact’ was already ‘(omega fact)’ then we wouldn’t have to call omega inside the definition of factorial correct.
		Once you see why the Y combinator is needed and you understand omega – its easy to see what the Y is and how it useful in defining recursive functions in a mathematically pure way.
		The Y combinator is described as a fixed point function or combinator.
	www.thinkingms.com /pensieve/CommentView,guid,46c670c3-639c-4817-b5f4-f459a25e5597.aspx (1338 words)

	Voodoo Ventures - Idea Fuel Blog : Blog Archive : Everyone is figuring out that Y Combinator has it figured out
		Y Combinator is aiming at even smaller firms, and its approach is decidedly unorthodox.
		Y Combinator’s $6000 per founder model keeps the founders hungry but more importantly is easy to make nice returns on in a exit environment that is dominated by acquisitions not IPO’s.
		The Y combinator model shows a clear understanding of what funding is required to build proof of concept ventures.
	www.voodooventures.com /2006/11/10/everyone-is-figuring-out-that-y-combinator-has-it-figured-out (1051 words)

	Paul Graham - Under the Microscope
		Y Combinator, specifically targets young entrepreneurs - albeit their investment size is generally much lower than the standard.
		Y Combinator is the investment company Graham co-founded with hackers like himself - Trevor Blackwell, Jessica Livingston, Robert Morris.
		Y Combinator makes seasonal investments twice a year and their investment size is initially lower than $30,000.
	www.readwriteweb.com /archives/paul_graham_profile.php (1677 words)

	What I Did this Summer
		This is good news for two reasons: (a) it's an encouraging thought, and (b) it means that Y Combinator, which is predicated on the idea, is not hosed.
		When we started Y Combinator, we planned to invest the way other venture firms do: as proposals came in, we'd evaluate them and decide yes or no. The SFP was just an experiment to get things started.
		Y Combinator is just accelerating a process that would have happened anyway.
	www.paulgraham.com /sfp.html (2397 words)

	Demo Day: Y Combinator’s Spring Chicks
		I don’t necessarily dislike the Y Combinator model, although from a founder’s standpoint the amount of equity you give up right off the bat is extremely expensive in the long run.
		Reading the descriptions of this crop of Y Combinator startups I got the impression that quite a few of them are better described as features than they are as services.
		Although Y Combinator might be gambling by taking stakes at $5000 in the long run it has a reputation to maintain, its i think funding websites not businesses, i just cannot imagine what are the revenue projections, marketing plans, entry strategies and whole other things that are fundamental to launching the businesses.
	www.techcrunch.com /2007/03/09/demo-day-y-combinators-spring-chicks (4483 words)

	Y Combinators
		This is where I keep my collection of Y Combinators in various languages.
		Essentially, the Y combinator is a higher order function that turns a function into a recursive function.
		In our example, when f is applied to (y f), it doesn't actually evaulate (y f) unless it is needed.
	www.cse.msu.edu /~dunham/ycomb.html (521 words)

	Who Are the Y Combinator Companies? » JenIT
		Reddit’s primary backer, Paul Graham’s fund Y Combinator, has become the poster child for making a successful startup with only tens of thousands of dollars in funding.
		Y Combinator’s investment is not so much in money as it is in the experience and connections the group provides to the teams, often shared over their weekly dinners.
		While the Y Combinator team ponders what they saw in last weekend’s interviews for the next round of funding, we thought now would be a good time to take a look at the last batch of Y Combinator companies.
	www.jenit.com /2006/11/09/who-are-the-y-combinator-companies (744 words)

	combinator - Ask.com Web Search
		Y Combinator is a new kind of venture firm specializing in funding early stage startups.
		Y Combinator's first project is to fund a crop of new startups this summer.
		"Y Combinator comes down to two kids in a room with two computers and ramen noodles for a summer," said Chris Sacca, a principal of new...
	web.ask.com /web?q=combinator&o=0&qsrc=0 (258 words)

	Inside Startup School (Site not responding. Last check: 2007-10-08)
		In the case of Y Combinator [1] and its recently completed Startup School [2], I would have to concur completely.
		Startup School is Y Combinator's initiative to help more potential entrepreneurs understand the process of moving from an idea to a company.
		Essentially their observations are that many of the people Y Combinator talks with are brilliant but generally are terrified by the concept of forming a business.
	www.linuxjournal.com /node/8617/print (880 words)

	Combinator Module Users' Manual
		Like the lambda calculus, one expresses a function by combining a set of terms; unlike the lambda calculus, CL has no variables; the terms are combinators, not lambda terms, and the method of combining combinators is composition, not application, as it is for the lambda calculus.
		The combinators are a subset of traditional combinators defined in [Smu1985]; the operators are the concessions made to "traditional" algebra for working with the natural numbers allowed in this language.
		combinator is not implemented here for this reason of infinite regression, but it is also possible to construct it, quite easily, from other combinators implemented here.
	www.cotilliongroup.com /man/combinators-man.html (1219 words)

	1000 Flowers Bloom: Y Combinator & TechStars - Not a good deal for Entrepreneurs? (Site not responding. Last check: 2007-10-08)
		From Techcrunch - the Y Combinator folks take basically 1% of your company for $1000 and TechStars takes the equivalent of $1% of your company for $3000.
		In the Y Combinator model seed companies that they fund are worth $100k.
		This means that companies that Y Combinator is funding are at a 60x discount to what a VC is funding companies at.
	1000flowersbloom.typepad.com /1000_flowers_bloom/2007/01/y_combinator_te.html (965 words)

	Sketchy LISP Vol. I - Tutorial
		This sub-section will explain how the Y combinator works and why the second self-application of the combinator may not be eta-reduced in Scheme.
		Although the Y combinator only has been used to create the factorial function in this section, it is of course not limited to this function.
		Indeed, this is exactly the way the Y combinator is written in lambda calculus, but it does not work in Scheme, so there has to be a subtle difference between LC and Scheme.
	www.t3x.org /sketchy/vol1/sl20.html (2165 words)

	COMP169 - Lambda-calculus
		since one has a free occurrence of y (and so its meaning will depend on the value associated with y) and the other is a closed term (so its meaning does not depend on y).
		Combinator reduction machines invariably use this strategy, and are thus able to implement lazy evaluation and call by need.
		Although one could use the Y combinator to implement recursion, most practical graph reduction machines will simply use a cyclic reference to from, so that the expression "tree" is actually a graph.
	turing.cs.camosun.bc.ca /comp169/notes/lambda.html (1847 words)

	Applicative Order Y Combinator [Archive] - CodingForums.com
		The given function definition of Y is some crazy manipulation of the true definition in lambda calculus.
		What does that tell us about Y? This is the important part: Y takes a function and applies it's return value on it's return value in a manner that means all return values will be sent the return value of itself, effectively expanding the example function to fact(fact(...(fact())...)), recursively.
		This means that the actions performed by the Y Combinator, like any other recursive statement, must have a condition that breaks out of the recursion, which for each run must come closer and closer, by direct or indirect means.
	www.codingforums.com /archive/index.php?t-29520.html (1203 words)

	Startups for the rest of us
		Paul and several of his colleagues even started Y Combinator, which is essentially an early stage investment group for software developers who want to make the attempt.
		If Paul and the other Y Combinator owners think your idea has merit, they'll fund you and up to four of your colleagues with $6,000 each for 12 weeks to work on your idea.
		I mean no disrespect to the people at Y Combinator but given that they're ignoring the rest of us, I think they're going to understand.
	www.miketaber.net /articles/StartupsForTheRestOfUs.aspx (3665 words)

	Y Combinator Taking Apps: Have Idea, Will Travel
		Y Combinator just announced their summer application drive.
		For those of you unfamiliar with Y Combinator, it’s the seed financing fund guided by Paul Graham’s philosophies that helps young startups launch through mentoring and investing a base $5,000 plus $5,000 per founder.
		While not the same ground floor financing as Y Combinator or TechStars, the venerable VC firm Charles River Ventures also adopted a smaller financing program (up to $250K debt) called Quick Start.
	www.techcrunch.com /2007/02/21/y-combinator-taking-apps-have-idea-will-travel (1496 words)

	[No title]
		While each combinator can be represented as a valid lambda calculus abstraction, it is convenient to think of each combinator as a primitive instruction in its own right.
		Using combinators it is not necessary to bind parameters to arguments or fill in free variables, in fact there are no variables.
		It can be used during reduction to "replace equals with equals." Since in order to use recursion in a combinator expression, we use the combinator "Y" to construct "Yf = f(Yf)", which is the fixed point of "f".
	www.engr.uconn.edu /~jeffm/Classes/CSE298-Spring-1999/Combinator/combinator.info (549 words)

	The YouOS Blog » Y Combinator: More than just a hearty meal every week
		For those of you who do not know what Y Combinator is, it’s a venture firm which specializes in funding early stage startups.
		In addition, the Y Combinator folks would invite someone from the startup community such as successful founders to talk about their experiences.
		I believe Y Combinator is an investment firm - as such, they hope to make a profit on their investments, if that’s what you mean.
	blog.youos.com /?p=55 (783 words)

	Y-Combinator
		We just pull out the (lambda (m)...) sub-expression and call it Y, since all of its variables are bound (after all, it's a combinator).
		The expression passed to Y is a "template" for the recursive length function.
		(define Y (lambda (m) ((lambda (f) (m (lambda (a) ((f f) a)))) (lambda (f) (m (lambda (a) ((f f) a)))))))
	dangermouse.brynmawr.edu /cs245/ycomb_jim.html (931 words)

	Good Math, Bad Math : Why oh why Y?
		What makes it special is the fact that for any function f, Y f evaluates to f Y f; which evaluates to f (f Y f); which evaluates to f (f (f Y f)).
		And "Y f" will expand into "f Y f" - that is, a call to "f" with "Y f" as its parameter.
		There is another version of Y which works for eager evaluation - in fact, it's the one described in "The Little Schemer", and they explain it so much better than I do that I'll just recommend again that you head for whatever bookstore you prefer, and buy yourself a copy.
	scienceblogs.com /goodmath/2006/08/why_oh_why_y.php (1937 words)

	Colorado needs Y Combinator (the unincubator) » ColoradoStartups.com
		Y Combinator organizes summer startup school and founder programs and provides seed capital to teams of entrepreneurs with compelling ideas.
		Danny actually pitched an idea to Y Combinator recently, and was turned down.
		However these kids who are still in school or are just graduating are probably in the best position of their life to take such risks, as Y Combinator partner Paul Graham points out in his “Hiring is Obsolete” essay.
	coloradostartups.com /?p=42 (341 words)

	The Future of Programming: An Interview with Paul Graham
		One of the reasons Y Combinator operates in 3-month cycles is that it leaves me some time to work on other stuff.
		So the original motivation for Y Combinator was to avoid work, but as so often happens, I got sucked into it and I'm constantly coming up with new schemes that require me to do more work.
		Their site, Reddit, is so useful that almost everyone who was around Y Combinator this summer is now genuinely addicted to it, including me. It's the first site I look at every morning and the last I look at every night.
	www.acm.org /crossroads/xrds12-3/paulgraham.html (1637 words)

	(Y Rumors)
		According to the Y Combinator FAQ, there are twelve Y companies in all.
		Maybe Y Combinator wasn't counting Simmery because I found out at Startup School that there is another Y company, flipt.
		17 Mar 2006: Someone added brainguppy and stuffguppy to the Y Combinator company list, but as far as I know they are just side projects of a Y Combinator company (which one?).
	yrumors.infogami.com /?r=70 (502 words)

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