Observe

Y Combinator funded AppJet is an online programming tool for building simple web apps. Founded by former MIT students, AppJet intends to simplify the process of writing web applications. The applications are programmed o

Bountii is a price search startup that has built a search engine capable of finding shoppers lower and more accurate prices than any existing price comparison service. Currently supplying consumers with pricing informati

Clickpass provides single-sign-on services to enter into various websites by using a single password. Clickpass is headquartered in San Francisco, California

ContestMachine is a web service that makes running promotions from any website easy. The service allows clients to run a contest or giveaway from their blog or website and handles the rest of the details, like collecting

More publishers trust us to engage, grow, and understand their audiences than any other. Build your on-site community with Disqus.

Dropbox is building the world’s first smart workspace. Back in 2007, making work better for people meant designing a simpler way to keep files in sync. Today, it means designing products that reduce busywork so you can

Fuzzwich is an online animation platform developed by Habit Industries.

Hello, Chair Inc. was founded in 2006 by Luke Iannini, Mike Jacobs and Kevin Corcoran to explore opportunities in applied machine learning and internet advertising. After receiving funding from Y-Combinator in 2007, we p

Reble offers a software download, only for windows, that allows users to stream music from your friends who also have installed Reble. It launched into public beta on Feb. 5th, 2008, and is a Y Combinator-funded company.

SocialPicks is an investment community where its members can truly learn from each other.

Songkick is the great live music startup. Since 2007, we’ve set about making it as easy, fun and fair as possible for you to see your favorite artists live. Right now, more than 15 million music fans across the globe use