webconnoisseur - 6:14 pm on Apr 15, 2003 (gmt 0)

Favorites:
1) Overture (only because of volume of traffic)
2) Google Adwords
3) Sprinks

I gave up on all the others, but should revisit them now that they have grown.

Never fall for the browser keyword plugin companies (they give you exclusive permission to a keyword typed in the address box of IE, but in reality a user must download their plug in to make that happen).