AngelList

Facebook helps you connect and share with the people in your life

Instant updates from your friends and the world

Share Your Story. Raise Money.

Mobile educational games

Identify and reward your most influential users with our drop-in social platform.

Airbnb for Cars

Modern People Search Engine. YC W2012. Ark.com

The easiest and most private way to share things with your significant other (YC W12)

Phone time re-imagined.

Making "Design" Super Simple

Stay connected with family & close friends.

Play With Your Friends.

We *get* users

Share like you do in real life, in intimate Circles

Killing the résumé

A Universal Social Catalog

Acquired by Sugar Inc.

SaaS 2.0 Social Fundraising for non-profits

Gaming

60M Uniques & 1.7B Pageviews - Fun Sharing Community

Skype meets the Khan Academy for live language tutoring

Labor in the Cloud.

99 Designs for legal

Communicate more efficiently.

The largest professional network on Facebook