[sobriquet]

nice work, it's fun to get some of the best stuff out there that doesn't seem to be made up like tfln or fml

1) Add tipjoy functionality, encouraging users to tip the best/funniest/helpful tweets.

2) charge referral fee to users who you scrape. Each new follower they get from favstar.fm costs $0.10 (seems like many of the people you are featuring are self-employed or creative types who would probably like more followers)

3) sponsored favoriters... allow brands/users who want their profile pic to show up as if they had favorited a tweet. pay per impression or click basis (they could get creative with the profile pics to grab attention)

4) promotion of top favorites across the web. build plug and play modules that people can add to their own sites, my yahoo, igoogle, their facebook page, etc. (or maybe just an RSS feed). Anyone can post it to their own site for entertainment value, but the only tweets that are eligible for the module are ones from paid accounts. Trouble is, the best/funniest twitter users probably wont want to pay for that distribution, they don't need it.