Replying to Adblock question

So I had ablock off at your request for awhile. I don't mind the adds because they are no longer animated (why I deleted them in the frist place.

Then today I saw and interesting looking ad, and actually clicked it. But it didn't take me to a website, instead it asked if I wanted to run a plug in.

That got me thinking. I know that you lose revenue to adblock. I am not opposed at all to seen advertisements. I had no idea what script the add wanted to run, probably just a flash animation, but you never know.

Looking into it deeper, I have found a list of potential trackers on each NS page:

first of all, which one of these must be unblocked for you to get add revenue?

Addroll
Chartbeat
Double Click
Google Analytics
Link Smart
PageFair
Quantcast
Score Card Research Beacon

second, what information are these things gathering from us?