Social Pomodoro - Meet an accountability buddy for 25 minutes of focused work.
Free Twitter RSS Feed Generator - Convert Twitter lists, hashtags & searches into RSS feeds
Focusmate - Distraction-free productivity via virtual coworking
Pine.blog - The social combo of an RSS feed reader and blogging app
Habit List - Create good habits and break bad ones with the app that keeps you focused.
Feedly - The content you need to accelerate your research, marketing, and sales.