Below are my Top 20 Free Vector Resources for Designers.
1. BittBox (http://www.bittbox.com)
2. Vecteezy (http://www.vecteezy.com/)
3. Go Medias Arsenal (http://www.gomedia.us/ )
4. Blog.Spoon Graphics (http://www.blog.spoongraphics.co.uk/)
5. Outline Maps (http://www.eduplace.com)
6. Free Vectors (http://www.freevectors.net/)
7. CreateSk8 (http://createsk8.com/)
8. Vector Portal (http://www.vectorportal.com/)
9. Open Clipart Library (http://www.openclipart.org/)
10. Vector Vault (http://www.vectorvault.com)
And the rest…
11. NDesign Vector Cliparts (http://www.ndesign-studio.com/resources/vector-cliparts/).
12. Magurno (http://www.magurno.com/).
13. Cuts and Caps – Briar Press ((http://www.briarpress.org/cuts).
14. Symbol Signs from Aiga.org (http://www.aiga.org/content.cfm/symbol-signs).
15. Vector Workshop (http://www.vectorsworkshop.com/).
16. Hydro 74 (http://hydro74.wordpress.com/category/free/).
17. All the Flags of the World (http://www.all-the-flags-of-the-world.c.la/).
18. Arcade Art Library (http://www.localarcade.com/arcade_art/).
19. Nugerilla (http://www.nuguerrilla.com/).
20. SVG Cards (http://david.bellot.free.fr/svg-cards/).