Appydev - Hand picked tools, communities & podcasts for the internet
Teech - 24/7 Unlimited help from the world's best students
Blogging for Devs - Grow your blog as a developer without an existing audience
ofCourseBooks - Let your students write, save and share their course notes.
Letterpad - Letterpad Answers, Cheats, Words, Solutions for iPhone, iPad, Android, Kindle and other devices, this free word puzzles is developed by NimbleBit LLC.
Student Kit - Everything a student needs.