I am more and more annoyed by those in-text advertising float out box now.
If you don't know what I'm talking about, they are the little on screen pop up boxes triggered by your mouse hovering over some text that are double underlined. The content showing inside the box is supposed to be relevent ad content for the text.
The problem is that most of the times the ads are irrelevent, at lease based on my experience. For example, I visited someone's blog and there is mentioning of the "front page of Digg", and guess what in-text advertising showed me? The Microsoft front page product. Unlike adsense ad, if the in-text ads are based only on the selected text, it is a lot harder to figure out the relevant one.
The in-text ad is also a distraction to me since I have to be careful about where my mouse is to avoid them showing up.
Unless those in-text ads become more relevant, they are just another form of the popup window that has been annoying the websurfers for years. Eventually some browser plugin will be developed to disable them.