There are not a ton of free SW comics out there. most that you will find that are free are not really "free". This is a really small community unfortunately
I can tell you that a lot of the SW work that the process sells is top notch! so you should support those artists. Also if you want some good SW sequences check out
http://jitenshasw.com/ she has a ton a multi page shrinking sequences all free. she also has a few shrinking comics for sale as well.
http://www.deviantart.com/ is also your friend
if you come across something that hasn't been posted here before link to it. none of us will mind some new content every now and again
hope this helps