I currently have a site that is built on open source pligg. I want to build a custom site in it's place. I would like a system that allows posting (your normal social website) but would like people to get "credit" points for reading other peoples postings. I also would like for people to have to have/need "credits" before they can post. Would like people to of course respond to postings and vote on them. When a story is voted for it gains popularity (typical social site). If you have the ability to redesign the website that would be great as that will need to be done as well. Thanks,