Stack Overflow - Community-based Q&A part of the Stack Exchange platform.
Tasker - Tasker is an application for Android which performs Tasks (sets of Actions) based on Contexts...
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
AutomateIt - Automate Your Android!
Askalot - Askalot is a next generation CQA (Community Question and Answer) system.
Automate - Automate various tasks on your Android smartphone or tablet.