Originally Posted by
CTACSRET
A few clicks and one year since I last hit the magic 500 mark. All said and done, it resets the clock for my FF miles whether or not I use the airline. If you spread out the various means of earning miles, you should never have any one airline program miles expire.

Except that e-miles does not let you switch your airline program. At least not very easily. From the FAQs:
Q. Can I change my preferred airline?
If you wish to change your preference to another e-Miles airline sponsor, you may do so for one of the following reasons, subject to the e-Miles Member Agreement, by contacting our Member Services team via e-mail at
[email protected]. However, any e-Miles miles earned that have not already been deposited to your preferred frequent flyer account will be lost.
a. You move fifty (50) miles or more from your current address.
b. There is a significant reduction or elimination in service to your city with your selected Sponsor airline.
c. Your selected Sponsor airline is no longer an e-Miles participating sponsor.
d. Other conditions could apply on a case-by-case basis, subject to e-Miles Member Agreement.
http://www.e-miles.com/memberServices.do
Another handy way to keep your miles alive (for those airline programs that participate) is Points.com . Even though the exchange ratios are lousy, sometimes it is worth it to do a 20:1 or 30:1 exchange to keep some orphan miles alive. (I actually managed to convert 30 points in one program to 1 point in another and reset the expiration clock on both!

)