WGT:
I have two ideas to help increase the popularity of the site:
1)How about referrals for credits. Similar to other websites, give us a referral link and for every few people we bring to the site (maybe every 3 or 4) give us 100 credits. Basically, we help make the site more popular by bringing our friends and you guys only give up in-game credits. You wouldn't lose much profit but would gain more players.
2)How about rewards for games played, even if we don't score great. I quickly moved up to the "pro" tier and seriously doubt I'll place in another tournament for a long, long time. However I still will play the game and love the site. I'm not sure how your revenue works but I assume it's based largely on site visitors. To keep me from getting bored with the game, in-game goals (like the rewards) are good. How about either random credits... or credits earned after "game milestones" like 100 games played, 500 fairways hit, 500 greens hit, etc. These little "incentive" awards might keep people coming back for more, even when the basic gameplay has worn off.
-These are just some ideas from my years of playing other games, particularly on consoles. They are simple suggestions that might make you guys some good money.