09-24-2007, 10:20 AM
Quote:Here is a top 10 list of what Google does not reveal.
1. Google does not tell advertisers where exactly their ad will get placed.
2. Google does not tell some publishers why exactly they shut them down.
3. Google does not share any network-level performance figures.
4. Google does not provide any information about how overall click rates have changed over time.
5. Google does not share any information on who clicked on the ads.
6. Google does not reveal what leads to higher placement among paid ads...
full article: http://imediaconnection.com/content/16605.asp