Things are getting nasty in the slippery world of PR spinmeisters and lobbyists. The digital Machiavellis over at Cicero have bought these punchy Google adverts targeted to appear when someone searches the name of one of their rivals:

These screenshots were taken this morning:

Searches for rival PR firms told Googlers to take their business elsewhere:

The message is not exactly subtle:

So Bell Pottinger, Brunswick, Blue Rubicon and Edelman – you gonna take that?