I'm not jealous of many things, but the fact that one guy built a dating site and is making millions from it annoys the shit out of me. It's one of the most hideous sites out there, but it also demonstrates how relatively worthless Yahoo, Match.com and the like really are.
I actually thought about doing something like that last year, but then I met Cath and dating sites weren't interesting to me anymore. I went through the same cycle at the start of this year too, but then I met Diana.
There's the real problem about me and online revenue. If I'm not interested, I probably won't do it. I had a template for an Xbox 360 site, but I wasn't that interested. I started a couple of blogs in high AdSense brackets, and lost interest in those too.
I do have an idea for a community site I'd like to do, and if I can ever get CB and PB re-launched, I think I can build it quickly. No idea if it will work, but I may give it a shot.