Monetizing Mobile related blog?

I haven't posted to this forum long time, but I would like to ask what is the best technique to monetize a blog? I made some time ago good money with YT + CPA but its almost now dead (its not) and now im doing SEO. I have 1200-1500 UV/day and growing but not doing much money with Adsense and CPA offers, its sucks. 1-2$/day with Adsense and with CPA not even 5$/day. I would like to know is there anything what I can do?

- Capture emails with a mainling list; sell solo ads, sposored email or products directly.
- Insert Amazon products related to your article somewhere.

- Sell your SEO services