My site gets around 9,000 unique visitors/day & around 20,000 pageviews/day but my earnings are well under $100/day from it. I had been using Adsense for over 2 years on the site before just recently switching to Sovrn (Adsense as backfill). That increased revenue a little bit but I'm still making well under $100/day. I know a guy who runs a similar website with slightly higher pageviews/day that's making ~$175/day with ads. What could I be doing wrong? I've tested all different ad spots, color change, blocking irrelevant ads, etc etc. but still get really low CPC/CTR rates.
Any advice would be great! Thanks