Toster

Stack Overflow is a free, community-driven, reputation-based Q & A site for computer programmers. No membership is required to ask questions or provide answers to questions by others. Registered users...

Quora.com is a question/answer service allowing users to pose questions that other users can answer, each question and answer can have comments, each users can write one individual answer and …

Yahoo! Answers is a way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Social Q&A network! Send and receive anonymous questions, and find out what others think about you.

Twithelp™ lets you use the huge Twitter community to get help with anything you want - simply and quickly. You can also help other people with things you know about, …

Slant is a collaboratively edited resource that helps you quickly make decisions. Instead of having to read multiple blog posts or dig through comment threads you can read summarized perspectives …

QsQs - это сервис вопросов и ответов, задавайте вопросы на любые темы и получайте практические ответы.