Hey, how can I send in my art into the forumusers, is it possible? do you have to pay? thanks.

You can post your art here.  If people like your stuff, they will shower you with compliments and beg Brad to add it to the site when he has a chance.  Be prepared to dodge shoes and rotten tomatoes if it sucks, though.

Here's a good idea of how this works:

http://www.stripcreator.com/forums/showthread.php?postnum=213702

Also, read the FAQ.  It has sizing guidelines. 

Thanks a lot.