Your Favourite Non G00gle Traffic Sources

What are your favourite non google/ non search engine traffic sources.

I currently use the following sites to drive traffic. What are your favourite non google / non search engine traffic sources?

Facebook
Twitter
Pinterest
Youtube
Forum posts
Digg
Web 2.0 Blog posts (e.g tumblr)
Forum profiles
Vimeo
Ebay - classified ad
Gumtree

** Forum Member Suggestions:

Newspaper Advertising -- krazy kitty
CL --- submitted by radarsurge
Amazon -- subbed by bestbuyfoam
Door to Door Leaflets - by djdafish