I get several emails per week from different ad networks/exchanges whatever they're called, telling me we're missing out on a 45%+ increase on ad revenue because we need to use their header bidding solution. I've been selling ads on our forum since 2000, but I need your help on this header bidding stuff. Is this something we need to do? We direct-sell maybe 10% of our inventory and pass the rest to AdSense (we use DFP). With Adsense, we get like $1.50 eCPM for our top leaderboard, and $.30 - $.60 eCPM for other ad slots on the page. Thanks for your help all!