I am trying to run sdome content network ads. I picked a couple of site that get good traffic, set my bids to 10cents, but I havent got any impressions. Should I chose more content sites, or up the bid or what?
Most likely your 10cents is way too low, Start with a much higher number and set your daily budget. that way you'll start to gain traffic and once you see CTR building up, start decreasing your bids to a lower number.
You'll need to bid higher than $.10 cpc. Test it out in gradual increments: Day 1 - $.20 Day 2 - $.30 Day 3 - $.40 Etc... As you bid higher each day, you should start to notice increases in impressions/clicks. Set the cpc at a level you're comfortable with.