Think, Check, Submit: Choose the Right Journal for your Research is a new site to help authors choose wisely.
Scholarly Kitchen post about the site: Think. Check. Submit. (How to Have Trust in Your Publisher.)
I really liked this blog post because it makes it clear that determining quality and honesty on the web isn't easy. I like the warning signs approach! Yes? Or No? Or HOW? Catching a Predator at Birth (Maybe)
Library site which has similar aims: libguides.wustl.edu/impact/authorbeware