Icon search

http://www.xprogress.com/post-48-free-social-networking-hand-drawn-doodle-icon-set/

http://www.tutorial9.net/downloads/vintage-stamp-social-media-icon-pack/

http://webtoolkit4.me/2010/04/17/21-free-social-vintage-icons/

more here:

http://blog.templatemonster.com/2010/09/30/65-free-social-icon-sets/