Inkscape tutorial how to make svg vector halftone background
http://www.youtube.com/watch?v=M7Jnimf7Ki8
http://www.youtube.com/watch?v=M7Jnimf7Ki8
http://www.youtube.com/watch?v=pa8Sz4kcae4
http://www.youtube.com/watch?v=kNkscdGit7k
http://www.youtube.com/watch?v=zxbVW7oOTjM
http://www.youtube.com/watch?v=fURmUbtXl3M
http://www.youtube.com/watch?v=ARTYZufXaEU
http://www.youtube.com/watch?v=sCuZ01Qo1Tg
http://www.youtube.com/watch?v=wWHzqyL7vkw
http://www.youtube.com/watch?v=V_B9DQvjLlY
http://www.youtube.com/watch?v=OVnn9mb4-0U
http://www.youtube.com/watch?v=gjQsAFXk0lg
http://www.youtube.com/watch?v=e5v8lAROYkc