bw100 - 8:00 pm on Jun 24, 2011 (gmt 0)
Here's one conjecture on some likely topics to be raised during this investigation.
Does Google's ad auction operate fairly?
Does Google favor its commerce affiliates?
Does Google unfairly promote its own products in search?
Considering that there are many other issues, and FTC probes take many turns as testimony is given, this could go on for years.