Dude, do NOT use your real email address! They don't check 99% of the time. I haven't used a real email address in a long long while...unless it was for something important.
In fact one of my favorite things to do is to fill out forms on websites. You know what I'm talking about. You click "Download the Drivers!" and you're suddenly presented with a big nasty form asking for all sorts of personal information. I fill them out like this:
First Name: Noneof
Middle Name: Yourfucking
Last Name: Business
Email: IamLaughing@YourSmallPenis.com
etc etc....
OR, it's even MORE fun to use an email address from that company! If mp3.com asks for your email address, use something like techsupport@mp3.com. That way those assholes can spam themselves. (this doesn't always work, but does most of the time)
Slackmaster 2000