sugarrae - 1:23 am on Sep 2, 2005 (gmt 0)
I had one site a while back where I did a comparison chart. The only way I'd link to a competing site was from the comparison chart. It would stack their services next to mine and compare them. The only way a competitor could get on the chart was to link to me as well. Worked well for this site - but it offered a service and we did have a good product that beat out competitors honestly.