Another Link Question

more of banner network ads

[LostJames]

Hello, it's LostJames again.
[BTW, thanks all for the wonderful info. as I was really being LOST as the dance went on...]

Question:
Banner Exchange programs (free ones where you put some banner on your site, and in return you get your banner on other site)
and those paid banner network ads (MS bCentral, etc.)

How are they viewed in the eye of Google?

Thanks!

[Craig_F]

they ignore them since the link in the banner is really to an ad server.