You have a lot of followers / are following a lot of users, so you could look into using Magpie (be-a-magpie.com) to do some ads. I think you would need to post

You have a lot of followers / are following a lot of users, so you could look into using Magpie (be-a-magpie.com) to do some ads. I think you would need to post more often to twitter.com/trackthis to really start making money from it though. It also raises the issue of advertising to your users / spamming them by requiring them to follow trackthis. Just an idea.