Really nice and simple SVG vector-based drawing editor.
Fabulous vector image editor.
Nice little SVG doodling app. A sort of join the dots way of working, maybe for making plans.
An excellent vector graphics editor, that leans towards creating design mockups.
Large collection of downloadable .svg files
Fabulous collection of SVG or .ai graphics files that you can edit with tools like Inkscape, Janvas or Gravit Designer.