source: http://comicbookgraphicdesign.com/comic-book-video-tutorials-draw-better-mastering-lines/
More content like this is indexed within the Drawing 2 module.
The MakingComics.com project is aimed at promoting comic arts and graphic storytelling to a worldwide audience through the use of free and up to date learning materials. MakingComics.com has the bold goal of becoming the largest, and most useful, online repository of comic-making educational material. This will be achieved through active creation of new content, learning community facilitation, and our crowdsourced repository of comic-making resources from around the web.