This is an old one, but we still see it popup every now and then from unsuspecting co-workers forwarding it around the office.
The scam: You get an email forwarded from a "friend" that says Microsoft, AOL and Intel are testing out a new email program. If you forward the email to as many folks as you can you will get paid:
When you forward this e-mail to friends, Intel can and will track it if you are a Microsoft Windows user for a two week time period. For every person that you forward this e-mail to, Microsoft will pay you $203.15, for every person that you sent it to that forwards it on, Microsoft will pay you $156.29 and for every third person that receives it, you will be paid $17.65.
Conclusion: This is an urban legend. There is no such email tracking technology, nor will you ever receive any money from Intel. Do your friends and family a favor and just delete it.