vBAnswers lets your members quickly ask questions to the community, as well as use quick tools to let others know which post helped them the most.
Uses
vBAnswers takes away the problem of having to search for the correct forum to post a problem in with its category system, which lets you specify a forum for each category's problems to be posted in. There's quick forms available both as a sidebar widget, and within the Forum Display page. Additionally, the thread starter can quickly let people know which posts were the helpful ones, making it easy for users to quickly find a solution if they, too, are experiencing the same problem.