Social bookmarking is the way for us to store, tag and share
links across the internet. We can access these links from any computer when you
anywhere any time. For example you want to visit www.productiveblogtips.blogspot and
you find a web page that you find interesting, instead of having to remember
the address the webpage to read any post whatever you again in future you need
to write the site address again to get ride from this just click on one of the
social bookmarking links add it to your list.
All these sites are free to use what you need is that you
have to first register yourself before begin bookmarking.
Here are some sites they are famous for bookmarking:
Reddit
Diggo
Delicious
Slashdot
Technorati
Stumbleupon
Pinterest
Chime
http://chime.in/