You can block them and many, many more with Ghostery. I've installed it on all of my computers/browsers.

http://www.ghostery.com/

  > Ghostery, a service of Evidon, Inc. All rights reserved.
  > http://www.evidon.com, formerly Better Advertising.

Thanks, I appreciate the irony, but No

Doesn't bother me. Is this paranoia or something? I mean, who better to know how to block advertising beacons than a former advertiser?

Yes.