I came across this in my reading: Mesh clothing and avatars in Second Life. This is a good article covering petites and other aspects of mesh. I think it is worth the read for anyone still confused about mesh, petites, and other aspects of mesh.
Hamet has just run an article on Mesh Avatar Faces: Leverocci’s Upcoming Mesh Heads in Second Life. Iris Ophelia wrote the article. While it would probably seem redundant to many at this point, she does not point out the limitation that mesh faces cannot be animated.
Snickers Snook in her article gets into the limits of mesh clothes, avatars, and such. Plus she adds a section on recovering from problems encountered when wearing mesh avatars. Eventually she gets to the Mesh Deformer too.
Snickers’ article is written for the fashionesta crowd and is easy to understand.