rcjordan - 1:40 pm on Apr 10, 2002 (gmt 0)

>Surely the most popular SE (for you) is the one that YOU optimised for (deliberately or accidently)?

Bingo! That's a great point. How many site owners have google as their top SE and simply assume that it's the best referrer out there? It's like keywords, I know which ones are my top ones, it's the ones I don't know about that keep worrying me.