Whitescape, a group dedicated to Inkscape, an open source vector graphics editor, with capabilities similar to Illustrator, CorelDraw, or Xara X, using the W3C standard Scalable Vector Graphics (SVG) file format.
A short list of various websites with Inkscape tutorials.
Posted by feillyne on Nov 13th, 2011
A couple of websites dedicated to Inkscape effects:
Official tutorials: Inkscape.org
Guide to a Vector Drawing Program e-book: Tavmjong.free.fr
35 Tutorials to create amazing Vector Graphics: Speckyboy.com
Inkscape tutorials web blog: Inkscapetutorials.wordpress.com
All these sites provide quite a load of learning material. Oh, and by the way, if you didn't have a chance to get to know Inkscape, its website is Inkscape.org it's completely free. ;-)