OSQA has answers! OSQA is the free, open source Q&A system you've been waiting for. Your OSQA site is more than just an FAQ page, it is a full-featured Q&A community. Users earn points and badges for useful participation, and everyone in the community wins.
Stack Exchange is a fast-growing network of 46 question and answer sites on diverse topics from software programming to cooking to photography and gaming.
Give your friends and followers the chance to ask you any question and share your answers with the world. Set up your personalized Q&A page in just a few clicks.
Stack Overflow is a collaboratively edited question and answer site for programmers - regardless of platform or language. It's 100% free, no registration required.
AutoUP is an easy and fast application dedicated to update the software you have installed on your PC to the latest and keeps you up-to-date. AutoUP is very easy to use and features a friendly UI.