Characterization of FriendFeed - A Web-based Social Aggregation Service

Many Web users have accounts with multiple different social networking services. This scenario has prompted develop- ment of "social aggregation" services such as FriendFeed that aggregate the information available through various services. Using five weeks of activity of more than 100,000 Friend- Feed users, we consider questions such as what types of ser- vices users aggregate content from, the relative popularity of services, who follows the aggregated content feeds, and why.