There are a number of ways for identity thieves to work their black magic within MySpace. A common one making the rounds is to send emails through MySpace accounts to people's networks. The email instructs you to visit a particular MySpace page (usually to check out some sexy photos or to get a free department store credit card.) And when you get there, you will be told you need to log in to MySpace. Even if you were just on MySpace and hadn't logged out, you will need to reenter your account name and password. Most of us won't pay any attention to that little voice in our head saying, "well isn't that kind of wierd" because we want to see the hot photos without any delay!! If you fall for these sites (and many people will) the page you link to is a cleverly-disguised identity theft site, not within the MySpace domain at all. And in your haste to see something "not appropriate for the office", you've now given a criminal access to your MySpace account and all of your friends.
I came across a web article that does a good job to visually demonstrate the issue and has the graph showing web traffic to the hacker site. Nothing like a good graph to bring the issue home! It would appear that for this particular scam, more than 50,000 people per day are clicking on the link and likely giving up their precious account login information as well.
I hope you'll be able to avoid this scam and stick with visiting only the sites and pages of your real-life friends and colleagues. Best wishes!!