Im looking for a web program similar to webanswers, with the following features:
1) Sharing of Adsense revenue for awarded answers. Registered users should not be able to see ads on the questions they've answered when logged in.
2) Similar features, where the person posting the question can award the answer they like best.
3) Chat room for registered users with 10 or more questions/answers.
4) Ability to add sections and subsections as required.
Will need installation on linux server, and can be PHP based.