I am an advertiser and would like to advertise a post on your readers list, in this case i had the idea that the most targete audience to show good reads would be the sidebar with the other lists, and name it "sponsored" to not get any confusion, i am not talking about feeds to promote, but could also be a possibility, but mainly 1 link at a time and it will only be shown to relevant audiences which have content, tags or lists related to the audience, for example if i want to promote my new "memes" website, i would set labels such as "fun" or "entertainment" and it will be available showing for the right people, i would really like this feature, with pricing options, lets say charge per click on an ad :) this is a good idea to also finance more power for server and your salary, sign me up! :)