This is one part of the UCS taxonomy chart with examples of UCS's that aggregate what people pay attention to.

Attention data is a digital record that describes the time spent interacting with someone or something.

Last.fm

Via software, Last.fm collects information about the songs people listen to on their computers or ipods, and uses that to create recommended playlists.

• Last.fm on Wikipedia
• Last.fm on Time's 50 Best Websites 2007
• Last.fm company profile on CrunchBase

Newsgator

Newgator's business is focused on social computing behind the firewall. They also produce the popular RSS client readers NetNewsWire and FeedDemon - which are available for free because, because of the value they capture.

• Newsgator, Free Products and Attention Data
• Newsgator: It's the Attention, Stupid

• NewsGator Launches Recommended Feeds Based on Attention Data

Example (make a link)

Short description - one or two lines about the example. Supporting links giving more information/context

• link
• link