I am selling cheap banners on Task.fm - a high profile reminder app thats been featured on Lifehacker, Mashable and ReadWriteWeb. Banners are displayed site wide on every page including the blog. As a special offer, I will also put a link on the pr4 blog free of charge for the duration of your ad. Price per month - $15 per month. Works out at less than $0.40 cpm! Banners are rotated and handled here