When creating graphics, there are some great sources of tools and data:

Tools

• Inkscape – Great SVG editor.
  • SVG Windows Explorer Extension
• Gimp – Raster image editor.
• Blender – 3D ray tracing (advanced).
• Apache Open Office – Presentation maker (Impress).

Image sources

• Iconfinder – Great sets of icons.
• Openclipart – Open source graphics in SVG format.
• freeimages – Excellent repository of free images.