Your oldest FS that still produce sales

[Linkster]

I have some freesites out there from 1999-2000 timeframe that still make a sale a year - as well as some avs mini sites that do the same as a minimum
These are all listed on just a few (probably 20) link lists that I used to submit to that have weathered the changes over the years - and the AVS sites are listed on maybe 5 link lists as well as the AVS itself

One thing I did a few years back (other than the standard hub/se/directory stuff) was to make sure that the sites all used sponsors that had been around forever (even when it meant that I went back and changed sponsors where necessary)
and avoided the newer sponsors completely as they seem to come and go with the wind - the reality type tours will get a few nice signups when the free site first goes out, but traditional seems to sell in the long run so I avoid the reality, newest thing on the block type paysites for those types of free sites