YCombinator

Y Combinator does seed funding for computer-related startups, especially Web-based applications. The Y Combinator investment is generally less than $20,000, and is given in exchange for small amounts of company stock. Y Combinator: About

Companies are chosen in two cycles: one in the summer in Cambridge, Massachusetts, and one in the winter in Mountain View, California. Founders of chosen companies are expected to move to Y Combinator's location for at least three months, during which they will receive advice and training from experts such as lawyers, investment banks and executives. Near the end of the three months, each company has a chance to pitch their products to investors.CrunchBase: Y Combinator Profile

Reddit, Loopt, ClickFacts, TextPayMe, Snipshot, Inkling Markets, Flagr, Wufoo, YouOS, LikeBetter, Thinkature, JamGlue, Scribd, Weebly, Virtualmin, Buxfer, Octopart, Heysan, Justin.TV, I'm In Like With You, SocialMoth, Xobni, Zecter, Adpinion, Anywhere.FM, Fuzzwich, Bountii, Songkick, Auctomatic, Disqus, Draftmix, Appjet, Webmynd, RescueTime, Reble, Heroku, Tipjoy, AddMired, Socialbrowse, Kirkland North, Wundrbar, Chatterous, Mixwit, Snaptalent, Clickpass, Insoshi, MightyQuiz, 280 North, Dropbox, Posterous, Anyvite, Slinkset, TicketStumbler, PopCuts, Ididwork, Startuply, Picwing, CO2Stats, PollEverywhere, and Backtype.