FriendFilter - Auto unfriend tool for Facebook
Rufus By Jtanza - Rufus is a free, open-source web based RSS reader, designed to be both simple and fast.
Keep My Friends - A lightweight, personal CRM to improve your relationships
Notify by Facebook - Notifications that matter from sources you love
Detox for Facebook - Replace your Facebook feed with PH, HN, DN and more.
Hvper - The Internet on one page. Successor of Popurls, the mother of news aggregators.