I have removed the advertisements from this blog. Not because I worried about people not liking them (they were fairly unobtrusive). Not because they were slowing down the page load times (although they did, a bit). Not even because I felt that they were somehow impinging upon my editorial independence.
No, I removed them because they weren’t generating any income. Not a single cent! I pretty much expected any income to be tiny, and certainly not enough to cover my fairly minor running expenses. It wasn’t tiny, it was totally absent. Experiment over.