Account - Anyone can create an account to ask or answer questions.

Editing - users can edit their posts anytime.

Sharing - posts can include links, videos or images just as the user wishes.

Notifications - you can mark the subject you are interested in and you will be notified when anything new is submitted.

Promotions - pin popular subjects or best rated answers to the top of the page to make them more visible.

Rating - all the userscan rate the answers good or bad so the better ones would be more visible.

Comments - questions can be commented and the admin can convert answers to comments if it's more appropriate.

Guides - upgrade best questions and answers to guides on the FAQ page.

Sort - all of the content can be sorted by posting date, most recent activity, most rated etc.

Images - add images to your posts without the need to upload it somewhere before.

Levels - promote the users to different levels depending on their activity or other predefined terms.