Startups

A Universal Social Catalog

Personal Networking

A smarter way to share

Instant updates from your friends and the world

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

Modern People Search Engine. YC W2012. Ark.com

A fun and beautiful way to animate your photos.

The super-easy way to see news from your friends

QR code, beacon, and other mobile transactions

Find & share great dishes, not just restaurants

Acquired by Sugar Inc.

Social media analytics

Be curious

The largest network of discussion communities in the world.

Shots makes status updates easy and fun.

The enterprise social network

Life's too short to be bored…

A social platform for academics to share research papers.

Location-based question and answer service.

discover and share

The largest site for readers and book recommendations in the world.

Make a beautiful page and inspire people to connect with you.

Who's nearby?

Live Stream Video.