Let me ask: What do you think we could do to help grow the US userbase? I'd love to see the US become the biggest nation in BB, but that means we need to find places other than Hattrick to advertise.
How about ads on CBS Sportsline, ESPN.com, TNT.com?
The reason BB hasn't advertised much outside of HT is because the retention rate makes it not worth it at the moment. People may sign up, but very few would actually play. The rate for people signing up via HT is much higher.