robdwoods - 7:52 am on Nov 24, 2011 (gmt 0)
Bing just nuked all but one of the top black friday ad sites from the index. Not just penalized but completely removed all the top ranking domains entirely (except one). Update happened on Nov 22 and 23. All they left in the top 20 was news sites (no sites with ads or products), one good ad site and one spam site with obviously hacked/spoofed backlinks.