Apart from the already mentioned alternative of having zero ads - more or less the way I see the 'net due to the rather extensive ad filtering I apply (on DNS,

Apart from the already mentioned alternative of having zero ads - more or less the way I see the 'net due to the rather extensive ad filtering I apply (on DNS, router and browser) - I'd prefer for ad companies to advertise on sites related to the material they're advertising. Sell drills? Advertise on DIY forums. Sell cat food? Sell on pet forums. Sell sex? Advertise on porn sites. Sell creepy products designed to profile users? Advertise on toilet paper.