A firestorm of explosive debate erupted on this blog recently as a record number of comments were posted to a discussion on new abuses from Facebook relating to its Social Ads and Beacon advertising offerings.

Every day, MediaPost’s Search Insider columnists illuminate the search landscape. Now it’s time for them to get off their pedestals and face your toughest questions first-hand. They’ll mouth off on all the most pressing search issues and the hot topics discussed at the Search Insider Summit so far.