Now you can advertise on my blog too AND it won't cost the earth! Check out ProjectWonderful.com where you can create ad boxes to advertise on other sites or get folk to advertise on yours - like me!!
PW talks you through each stage.
Ads are sold through PW, you bid on an advertising slot, and for as long as you are the high bidder, your ad is displayed. You can bid whatever price you'd like for as long as you'd like: two days, a week, a year - it's your choice. All bids are in "cost per day" - you simply tell them how much you're willing to pay for a day's worth of advertising, and whenever you are the high bidder, your ad will be displayed! You're only charged for the time periods when your ad is shown. You can also set hard expense limits on your bids, so you'll never get charged more than you expect.
So what are you waiting for? Go on, you can't lose, only 0.10!!