Stack Overflow - Community-based Q&A part of the Stack Exchange platform.
Vizmato - Vizmato developed by Global Delight Technologies Pvt.
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
ROLR - Act out your favorite movies with friends
Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.
Add Music to Video App - Add Music to Video is an intelligent video editing application that helps you make your everyday videos more exciting by adding background voice-over or music to your video.