1. tool
   1. calendar
      1. add-to-calendar
      2. check-calendar
   2. email
      1. email
      2. get-email-address
      3. last-email
   3. map
      1. map
      2. map-these
   4. tab
      1. tab
      2. close-related-tabs
      3. close-tab
   5. translate
   6. calculate
   7. weather
   8. word-count
   9. zoom
   10. convert
   11. tag
   12. tinyurl
2. search
   1. google
   2. amazon-search
   3. answers-search
   4. define
   5. ask-search
   6. bugzilla
   7. ebay-search
   8. flickr
   9. imdb
   10. msn-search
   11. search
   12. wikipedia
   13. yahoo-search
   14. yelp
   15. youtube
3. edit
   1. bold
   2. italic
   3. underline
   4. delete
   5. undelete
   6. edit-page
   7. stop-editing-page
   8. save
   9. remove-annotations
   10. escape-html-entities
   11. highlight
   12. syntax-highlight
   13. redo
   14. undo
   15. link-to-wikipedia
   16. sparkline
4. itself
   1. help
   2. command-editor
   3. command-list
5. other
   1. digg
   2. example
   3. twitter
   4. view-code