[iheartmemcache]

That was what by far I found most interesting. Those could be easily labelled as genuinely anti-competitive practices - (i.e., it'd be if Google blocked "Bing" lookups, or vice versa (presuming it was manually added by their staff, rather than auto-triggered by a lot of adult content being flagged at the same time, and a heuristic firing off a ban-signal)). MS got into that whole DOJ trouble for bundling their own browser for way less than that.