Well then, lets say Im a Bears fan, which I am...haha and they do make the superbowl, I did check superbowl.com it says you can purchase through the teams going, throught the other 29 NFL teams, and then there is a lottery for the rest of the tickets, so Im wondering if they are sold normally through like ticketmaster or something at a certain time and date until they are gone?

They don't. Owing to a lottery system, the general public doesn;t get much of a shot at tickets anymore.

You should contact the NFL regarding proper procedures to get an opportunity for tickets

Don't worry, the Bears aren't going.....Just kidding.
You have to contact one of the teams' offices that are in the hunt at the end. The season ticket holders get first crack at the seats held by the team, which isn't too many. Or go to some ticket brokers or EBay...they always get their hands on some. I know guys who have gone to the gamesite and purchased them outside the venue from a scalper. Probably the cheapest in the long run, but risky.