Lifestreaming aggregates social media updates and content into a single stream. It is built on RSS feeds and allows users to listen to, broadcast, collaborate on, and converse around online content from various sources like social bookmarks, photos, videos, and microblogs all in one place. Lifestreaming services like Friendfeed allow users to bring important blogs, news alerts, social media profiles, and other domain-specific sources together to quickly scan news and engage with relevant information.