Which social bookmarking sites have you found actually drive traffic?

I use Facebook, Twitter and LindedIn. Generally speaking I have found that Facebook has brought the most traffic to my site, simply for the reason that I have exponentially more Facebook friends than Twitter followers and LinkedIn connections. However when I post a link to one of my items for sale on ebay I found that the number of viewers of that item, have increased much more after Tweeting that link than when I post it on Facebook.

 

i have used facebook and twitter sometimes Google Buzzz

 

Netvibes is as good as any...

 

The most useful traffic I get from Facebook. But I get the most traffic from Stumbleupon.

 

Nice question its facebook and twitter also there are a lots of site exist but as i know facebook and twitter is best so good job keeep asking

 

For me I have had some great results with facebook and twitter. However I am having trouble getting anything noticed on reddit or stumbleupon, hopefully this will change soon

 

I have found that reddit does a great job!