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=ARTYZufXaEU
http://www.youtube.com/watch?v=sCuZ01Qo1Tg
http://www.youtube.com/watch?v=gjQsAFXk0lg
http://www.youtube.com/watch?v=e5v8lAROYkc
http://www.youtube.com/watch?v=Se8kPaIENfI
http://www.youtube.com/watch?v=F50T8WB7Dqw
http://www.youtube.com/watch?v=VHb5C5Mk3g4
http://www.youtube.com/watch?v=MEmOOxrkQEs
http://www.youtube.com/watch?v=1tWE0c1t_CU