- Most of the ads display things I already have purchased. (thanks, Amazon/eBay, for letting them know) or services that I already use.
- They display things I don't particularly want to buy want to buy or already (I already have a domain and hosting provider)
- I don't use Windows and not so much Mac either. And if I did I wouldn’t buy AV every other day.
- One problem is that big money will get first dibs to your eyeballs, and push out any lower-paid truly related content that might be interesting.
-Article minefield links, yo know the ones where you scan the article with the mouse and hit one of their pop-up links - really hate those (I bet many businesses get unfairly duped out of click through revenue with that).
- Advertisements in articles and web videos, I rarely ever look at them, I instinctively go for the close box (not focusing at all at the ad content)... The only one that have been effective in my view are the video pre-play commercial with the (click after to skip after x seconds) Usually the commercials are interesting and may actually watch it through.
- I would figure the most effective ads would be where people are looking - i.e. amazon in-store advertisements, google ad words, etc.
- TWiT TV does commercials, they try their best to keep sponsorship relevant, that’s a good thing for making the show enjoyable as well as making the advertisement more effective.
Im sure I could come up with more. If you want to see what not to do as you rely more on advertisement look at Slasdot's new side border ad stuff.