Sometimes it seems that Googlehas so many different experiments going on with hotel ads and pricing that it is simply planting them in various search results and pages to see which ones sprout.
For example, a Google search for “Chicago hotels” produces an organic result for Omni Chicago Hotel with an ad at the bottom which says, “15% Off Weekends.”
Read the full story at: http://www.tnooz.com/2011/04/12/news/google-continues-experiments-with-hotel-ads-and-coupons/