Does anyone one know of any sites that carry parts for these blazers? I am looking for some new seats among other things. I would like to find something nice and durable for a 4x4 just not too expensive.

Lmc truck is a great company. i don't know if they carry seats though, just new covers.

what i have found is if you want original parts to replace broken ones a good source is http://www.classicindustries.com/ they have almost any part you can think of. havnt found and good aftermarket sites

Try these places.
http://www.rockauto.com/
http://www.chevypartstore.com/
http://www.autobodypartsgo.com/chevy--blazer.html