On Wednesday Heathrow Express, a train that connects central London to Heathrow airport in about 15 minutes, opened its first flight-information display screens and check-in services at its Paddington Station terminal in London.

WSJ: Cutting Down On the To and Fro

This suggests that one element of the solution will be labelling when Google's in-house services -- such as maps, airline flight details or shopping comparison information -- are artificially given a higher billing than rivals.

CNN: Brussels takes tough stance on Google