This site has great widgets that you can use on your own site, or does a decent job presenting your material if you don't have your own site, but when it comes to paid services is a ripoff. First, if you sign up for something that auto-renews, and you cancel mid-month, they stop the services right then instead of giving you the full month's worth that you paid for. Second, the opportunities seem to only ever go people who have done whatever they've done to accumulate ridiculous amounts of fans and there's no guarantee the promoters ever actually listen to your material when you submit. So, have an account there but don't bother to pay for services.