Should i adsense or not?

Well haven't been here much lately, in case you haven't noticed! Been busy with other stuff. But i've been thinking... is it worth my while sullying my nice clean blog with ads, or not. The Suite 101 article thing is turning out to be a bit of a wash-out, as regards earnings. So i'm thinking it might be better to put more work into my blog, and promote it, and if i have ads on it, then i can earn a little here too. I'm feeling that though i haven't exactly got the turnover yet, to warrant it, that maybe i would, if i posted more and promoted it more. Whaddya think, people? Comments would be appreciated on this issue, as i haven't made up my mind yet.