Well here’s a really cool idea for a site which specializes in cool ideas for other sites. Check it out… Area 51, Stack Exchange . So someone proposes an idea for a site, and then other people commit to using it. When a proposed site reaches 100% Commitment (I’m not sure how many people that is) it goes into the Beta stage, where the site actually gets a temp domain and people start contributing real topics.
Also there’s no shortage of cool graphics throughout the site.