Blue Skies Ahead, Careerbuilder ad. Very annoying when your mouse accidently rolls over the ad and pops up over the text your trying to read. No expanding ads, peak a boo ads, pop ups, or flyby ads please.
Use Firefox, plus AdBlocker and you won't have to worry about it...
All ads are annoying.
But I agree with tecmo34. You can use the Adblock plugin to filter out the ads.