Can anyone explain why my ads sometimes show up in the blue box (above the natural search results) and sometimes the blue box is non existent and all ads are on the right hand side on the same keyword search.
You might want to read about this in the adwords help pages: http://adwords.google.com/support/bin/answer.py?answer=6546&topic=7093
You need: - Great quality score - High CTR - Be paying a decent amount per click - The relivance of your ad - The relivance of your landing page - The history of your ad - and other factors (google wont tell us) Hope this helps