Tabs Outliner - Next Generation Session, Windows, Tabs Manager and a TooManyTabs Solution That Really Works.
UpEffect - Crowdfunding for social good products
OneTab - Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.
Tickr - TICKR is GTK-based RSS READER application which displays RSS FEEDS in a TICKER bar on your desktop.
Session Box - Using websites with multiple accounts at the same time is made easy.
Creddon - Tweet for a cause and a sponsor will donate $1 to charity