Your avatar is managed through Gravatar
Integration Everpad (https://github.com/nvbn/everpad) with gnome-shell.
Integration Gnote or Tomboy with gnome-shell
Google Calculator & units and currency converter
No longer maintained. See https://github.com/awamper/draobpilc for replacement.
Search videos and photos via Youtube, Vimeo and Flickr.
Search http://stackexchange.com sites
Search the web directly from Gnome Shell.
<Super><Control>S - search(clipboard)
To search in Wikipedia enter the keyword(default is 'w') and your request after a space. You can also specify a language different from the default by adding to the keyword sign '-' and the language code.
Activate demanding attention window. <Super>W is default keybinding.