Same page displays ads from different advertising networks each time?

[bryanw]

Hello,

When I visit some website, it displays ads from zedo.com, and redirect me to zedo.com if I click the ad. Next time I visit the page, it displays ads from doubleclick.net and redirect me to doubleclick.net too. (Sometimes, it's adserver.adtechus.com instead of doubleclick)

When I check out the source code of the page, there are no zedo or doubleclick. I think they may be in some javascript files.

My question here is WHO serve ads for the website? zedo or doubleclick? How to advertise on the site?

Thanks a lot!
Bryan

[adamxcl]

It's probably just an Ad manager program. The site owner loads up different programs, maybe even Adsense and they rotate throughout the site, fluctuating on impressions and price points for the ads. You would have to contact the website to find out about advertising.