Do you know about link exchange? Link Exchange is a tool that is used to establish friendships or the term blog, link exchange may affect Page Rank or rankings on search engines like Google, Yahoo, and Alexa which is often abbreviated to increase your PR (Page Rank) :D If we know whose name is Link Exchange must also know the names Blogroll.
Blogroll is a list or set of links which are sorted and placed in the sidebar of a blog.
Blogroll functions are:
* Simplifies the visit to my blog friends.
From the blogroll list we have, we move easily from one blog to another blog. Stay pinch links, we can visit your blog friends more easily.
It is impossible to memorize all the addresses that we want to visit our blog. Blogroll function is like a telephone book and address book that we have.

* Obtain or maintain friendships among bloggers.
By exchanging blogroll, we'll get new friends in the blogosphere. Please add links on your friends, they would be happy to put your blog link on their blog.
* Promote other blogs that we have.
By having a blogroll on the sidebar of our blog, we can add some blogs that we have at the same time to promote it to visitors. With the existence of a link displayed on our blogroll, it means that the link has an opportunity for the clicks by a reader.
*Means promotion elsewhere.
If there is already another blogger who posted a link blog in their blogroll, then we have to promote our blog.
Install a blogroll in the sidebar of a blog means that we will share the link juice to the entire link in the list. With a DoFollow blog .