lol...everyone giving the wrong info... you don't HAVE to have 1000 posts...it's just tough before that...doesn't mean it won't happen
Same is the suggestion from me. you should make atleast 1k posts to get atleast $10 per month with a link.
Superman, your "put your link" here actually links to a site If you want to sell it, make a sales thread and have that linked to your signature so people who are interested can check out the current bid price!
get to 1000+ posts, then sell it for $10 per signature link for a month, also your avatar can give you $5-10! even your blog feed can be sold! anyways, don't sell it below 1000 posts, you won't get much out of it, just sell for a month, as always, next month you will have more posts
If you've got between 400-500 posts, then that would be a good time to start selling your links if you so wish