Do you guys tweak your Adsense account for blogging ads? like block low rpm ads or low cpc?
Some quick suggestions - Don't block low RPM or lCPC ads, they will not show when there is a better paying ad available. Instead work on improving the content to attract better paying ads. A more valuable(to users) page often means higher paying ads. Remember, the CPC of an ad click is heavily influenced by the number of ads competing for a spot on that page.
- Don't focus exclusively on low traffic topics. Many gurus are preaching that you write about "under served" content so that you rank faster. Under served content often has a much smaller group of advertisers willing to bid on the ad slot, sometimes none. Under served often means too specific with a limited number of possible advertisers, regardless of topic.
- Consider leaving auto ads on but turning in page ads off. Try setting auto ads to only serve anchor ads and insert some native In-article ads manually and possibly a native multiplex ad at the bottom manually. By controlling the ad locations you can better A-B test your site.
I'd recommend not inserting the first manual ad unit until just at or just below the fold (on desktop). This will prevent content layout shift issues or visitors getting hit with too many ads up top and leaving. Insert a second ad further down the page where the first ad scrolls off the page a little(on desktop) to avoid multiple ads showing at once. A multiplex ad at the bottom with your similar content has good results on some sites too. Experiment!
- Focus on improving content, Better content tends to have a wider appeal and ranks for more keywords = more competition for ad slots = higher CPC
edit: I know an ad unit above the fold is recommended by many but an anchor ad is always above the fold and adsense sometimes serves them above the content, not just below. Try using the anchor ad as your above the fold unit... and test, test, test!