StumbleUpon is one of the most popular bookmarking sites which can sends a lot of traffic to any blogs. After your blog post is stumbled and if stumblers (members of StumbleUpon ) find it interesting, they will definitely follow the link to your blog. And in this way you will get a lot of visitors.
By Adding a
StumbleUpon Button your blog enable the visitors to submit your posts to
StumbleUpon and you will get additional traffic.
How to do:
STEP #1 Choose your Stumble Upon button design