Lifestreaming involves two processes, tracking personal information and broadcasting it to an audience, and most social media sites are designed to facilitate both aspects. Large sites like Facebook and Twitter serve as aggregators for niche sites like Spotify (music), Runkeeper (fitness), and GoodReads (book reviews), encouraging users to share data. Last.fm, for instance, has a plug-in for iTunes and Spotify that logs every song played, creating charts of top tracks and artists that can be displayed on Facebook, Tumblr, or personal blogs. Smartphone apps further assist users in tracking while on the go, often sharing information automatically.

Alice E. Marwick, Status Update, loc. 542