Hey, I'd love to join! Maybe I can post some of my drawings... Anyway, since nobody has suggested any good tutorials sites, I'll post some.
mangatutorials.com (ASOLUTELY AWSOME!)
howtodrawmanga.com/tutorials
polykarbon.com
mangaacademy.com (not really given this one a good look)
http://sai-manga-tuts.deviantart.com/
Here's some, but there are tons of others out there and well worth looking for!
P.S. If your into writing as well (or if you not), check out my site at fearbased.trpod.com It's totally rad! I'm looking for help at the moment, and would appreciate an e-mail (it's on my site).