Voting is as simple as clicking on one of the links (either in the original message, or in the side bar). -- After you click on the link, look for a bar at the bottom of the screen giving you a voting area. The votes run from low numbers (1) to high numbers (10). Higher numbers better for the sites being voted for. Click one of the numbers in the voting bar and that's it. Once the vote is registered, you'll be 'surfed' over to another random blog from the Blog Mad system, and the process repeats for as long as you keep voting for sites. If you enjoy the process, feel free to vote for a few more blogs, if not, simply close the window, or back out of the blogs you visit to get back to where you were or want to be.
The VARB info may not show up unless you're a member of Blog Mad (was afraid of that).
I don't want to seem like a car salesman putting on the hard sell, but I do have to give some credit to Blog Mad, they do seem to be really interested in giving their users a good experience, and have been quite competitive to other sites (like Blog Explosion, Blog Advance, etc.)
They also have proven to be a site where you might find some nice people hanging out doing the shout box chatting. Even a few names you might recognize from JU. Be sure to wave at them if you see them while visiting