I've been testing some text ad exchanges lately and they really have proved to be more effective then banner exchanges. If anyone wants to try I'd recommend TxtSwap (why not clicking my affiliate link http://www.yoursoft-tm.com/go.cgi?24 - it won't cost ya a thing ) - their ads can be easily formatted and included in your web site (you can have up to 5 ads, 50 characters in length).

You can find some other text ad exchanges at http://www.lights.com/weblogs/textads.html , but most of them won't let you customize the look of the ads displayed on your site.

Hope this helps a bit those who are seeking relatively effective ways of free promotion.

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