Being the San Diego Computer consultants that we are, we come up with a lot of options for IT support and helping our clients proactively. We currently are letting our clients know about a new thing called "scare ware".
All the info on this can be found at this URL. It basically is when you start having lots of pop ups saying that you have a virus and please put your credit card down. Be very careful when clicking around -- things that seem legit may not be at all.
For more info on this, checkout this URL:http://www.microsoft.com/security/antivirus/rogue.aspx