i want to start using them(layer-ads.de) but before it i wanted to get some advice from someone that used them recently one of my blogs be banned with google for using pay-ads,and now i fear to start any network without asking others. i think their layer ads is so big and cover all of the page,is it worth to use them? and other question,does anyone know that using these types of ads does affect serp at google? thanks
They are safe. If your traffic is from Europe (specially Germany, Austria and UK), you'll earn about 4$ CPM. If your traffic is not from europe, then I don't reccomend them to you.
Everything is in german so i can't understand anything there ! Anyway, check this thread - You'll find it usefull http://forums.digitalpoint.com/showthread.php?t=53991