Radius Global Marketing sent me a fake check for $1300.00 in October of 2011 then sent me another check in December of 2011 for $1900.00 New york, New York

It may be an old scam however, it must still work because  I received a 2nd check within 2 months.  We live and learn - and boy have I learned the hard way.  But right-on! with your agreeing to do research before we leap into something that we'll regret later.

This is a very old and common scam.  You didn't say it but most likely the checks came with a letter to call a specific person where they would give you further instructions.  These instructions usually involve you depositing the check and sending them a Western Union Money Gram(or something similar).  But then you only find out it is a scam several days later when the check comes back as counterfeit and you are on the hook with your bank for the money.

As to your "yeah right" comment.  They are right, they have absolutely no control over these people using their name.  Believe me that if there was a way to get these people to stop using their name, they would.  The people that are sending it are from a foreign country and could care less about any laws.  Since they do everything they can to be anonymous trying to track them down is basically impossible.  Still don't believe me, well then the next time you get a letter from Microsoft, Google or Yahoo telling you that you won the "Internet Lottery" please tell us what they said when you complained to them.

everyone should try and be slow about having any business dealings with any company w/o first doing your research.
- That is the BEST thing you said, and something you should apply when doing business with any company.  But even simpler is that anytime anyone sends you a check out of the blue and/or asks you to send any money by Western Union you should instantly think SCAM and move on.