Links Out to Offsite Tutorials
I put a lot of stock by the Deviant-artist Cedarseed. You will see this name multiple times. You might also notice that I do not post manga tutorials. I find it unnecessary to do so because of all the other ways to draw in that style, and of how easy it is to google a How-to-Draw Manga tutorial.
Adobe Photoshop and Illustrator Inking: by Lizkay of dA - for you CG lineartists out there.
"Invisible" Watermark: by Princess-of-Shadows of dA - to protect your images from theft.
Basic Animal Anatomy Guide: by Cedarseed of dA - For those who just can't get those wolf's legs to look right or that horse's face just the right length.
Comprehensive Guide to Drawing Humans: by Cedarseed - For everyone who has a little trouble with drawing people, this is a big tutorial that covers just about everything you need to know to draw the human body: basic anatomy(non-offensive), proportions, views, foreshortening, etc.
Guide to Emotions and Expressions: by Cedarseed - This is for those who aren't afraid to let their characters or subjects not look their coolest or most beautiful and want to learn to portray emotions accurately.
These contain extremely mild female nudity(torso) for the sake of anatomical correctness. If you cannot be mature enough to handle even that, please do some growing up.
Comprehensive Guide to Races I: by Cedarseed - This is for those who want to either start with realism or "graduate" from drawing manga; Asian races installment.
Comprehensive Guide to Races II: by Cedarseed - Also for the budding realist, this features the immense zoo of Caucasians.
Comprehensive Guide to Races III: by Cedarseed - Final installment of the race tutorials, this covers the African and Indo-Pacific races.