I believe this might have been asked before, but I wanted a fresh/new opinions. I used to think StumbleUpon was great for quick 1 time traffic, but I seem to be losing there (it may be a problem with my stumble toolbar). I never get traffic from digg, propeller, or furl. As I take the time to submit my links to these sites (yes I know it builds backlinks), but I would love to know I might get a visitor or two. Where are you getting traffic from?
For me, Digg and StumbleUpon have given me the most traffic. You can find people that offer digs and stumbles for a cheap price. Works quite well if you can rack them up