Here's a sampling of startups from today's sessions: Gumhoo hopes to be a universal shopping cart that taps your friends for shopping advice. Fav.tv is a social network that connects users to television shows and related media. OfferedLocal.com helps businesses create and manage deals on social networks.

"Are they different enough from what's out there?" asks Rich Wong of Accel Partners, speaking generally of the presentations.

Some of the social network startups took broad angles, such as Lifecrowd, which tries to match people with an array of local physical activities, while others had a unique spin on a targeted audience.