I like button exchanges more because they take up a fraction of the space and loading time. 88x31 pixel or other sizes, stats, and extra traffic for referrals. ButtonXchange Another good 88x31 button exchange program. Free button templates to use, stats, a top site list, and a top click through button page. TextSwap Place a simple text link on your site and get 1 guarenteed hit per 2 hits from you.
Text links have a much higher success rate than banners.
Also get extra hits for referring new members. The concept of this site is that someone visits your site in exchange for you visiting their website. Your banner is placed on the member page of each member whos site you visit. SubmitExpress Free submission of your website to over 40 search engines and meta search engines. Free, quick and successful submission of your site to over 25 major search engines.