I came across some good articles on bestadrevenue.com for ad networks, pop ads and even some ad networks for mommy bloggers like myself! They have a brief article on who they like and links on how to sign up. Here are a few links.

Best Ad Networks List - bestadrevenue.com/3/post/2014/12/the-best-ad-networks-to-monetize-your-website.html

Best Pop Ads - bestadrevenue.com/pop-ad-networks.html

Ad Networks For Mom Bloggers - bestadrevenue.com/3/post/2014/12/5-best-ad-networks-for-mom-bloggers.html

Hope this helps some!

I'd make links but I seem to have no idea how.