I just posted an entry in the Forums on how to be able to vote here on Mi.  I think that with the site going 'public' in a month, the ability to post your work and have it voted or commented on by your peers will be an integral part of making not only your portfolio, but the site a much tighter exhibit of quality art.

Here is the link to the post...

http://www.modelinsider.com/community/viewtopic.php?f=13&t=1243