I'm advertising on G's display network, and I started getting tons of traffic from these placements:
ad.doubleclick.net
Is there no way I can get G to show me the actual sites my ads are showing on?
nope, pause those placements. Stay on top of your automatic placements because, even in Google, there is a lot of fraud.
Another thing. Check your 'Dimensions' report and look at all 'regions' in the US. Notice there will be traffic coming from 'Unspecified'. That is junk too
The way to get rid of it is target all 50 states in a campaign, instead of just US, if that makes sense.
J