(Apps)

    - Chrome
    - TextMate
    - Terminal
    - Twitter for Mac
    - Sparrow
    - DropBox

(Sites)

    - Google Analytics
    - Much of Google Suite (Docs, Spreadsheets, Sites, Calendar)
    - Quora
    - LinkedIn
    - Pivotal Tracker
    - GetSatisfaction

Also just signed up for sparkmuse, curious to see it as well.