I have a new website at [url removed, login to view]
It allows users to upload PHP projects to share with others. Contributers can use their Google AdSense Publisher ID to show their own ads on the website, earning them a little money. (The more popular the user's projects, the more ad displays.)
I need the website promoted and for people to start using the website. I think the key point is that users can make money just by sharing code.