Tenko (天狐) from Hokusai Manga (北斎漫画) |
Right now, the #1 tutorial for beginners, intermediate and even advanced drawers, for the most complete content is:
Mark Crilley's manga tutorials on Youtube:
http://www.youtube.com/user/markcrilley?feature=g-user-u
With the most simple of tools, Crilley shows us a good glimpse on how he developed his style.
Manga Lessons on Youtube:
http://www.youtube.com/user/MangaLessons?feature=g-user-u
They are focused in working with Copic Markers and coloring. Very specific for body parts and proportions, as well as accessories.
Tutorial How to Draw Manga:
http://www.squidoo.com/tutorial-how-to-draw-manga
The most basic of introductions is contained in this article
Best Manga Tutorials by Kit-Kitty:
http://www.squidoo.com/manga-tutorials
This legendary Squidoo lens showcases the best manga tutorials on Deviantart for drawing every type of manga characters.
Mangatutorials.com
http://www.mangatutorials.com/
THE latest resource site blog with a forum, updated almost everyday with new tutorials and content. Perfect to keep up with the latest trends and techniques. I'd recommend their section on Manga Studio paneling techniques.
Pixiv.net
http://www.pixiv.net/
It started out as a Japanese community of aspiring manga artists and fans, but it's a wonderful site for visual education and reference, especially for coloring.