Social Bookmarking Sites

Delicious: Delicious allows you to easily add sites you like to your personal collection of links and to categorize those sites with keywords. Not to mention that if enough people save your site in a bookmark, it will make their popular page and send a lot of traffic.

Digg: Digg is a high power authority and a listing tool. If your site is shared and voted upon on Digg, and makes the Digg homepage, you’ll get a lot of traffic and attention from other bloggers who read Digg.

StumbleUpon : StumbleUpon is an amazing blend of social bookmarking, voting, networking, web surfing, search and blogging. Best of all, StumbleUpon can send major traffic with its userbase.

Technorati: Always changing and reinventing themselves, this recognized authority offers links to blogposts, tagging and a social bookmarking.