Facebook Putting an end to CPM advertising.

Just read this and is horrible news. Hopefully there will be a work around as the info is still kinda vague but it looks like getting a high CTR on an CPM campaign will cause you to be punished with less impressions. They are telling anyone using CPM and wanting to clicks to move over to a CPC version of the ad.

http://wisestartupblog.com/startups/new-facebook-ads-rules-punishing-cpm-advertisers/4467/

I don't know about all that. I say the best thing to do is open up both and run the same thing side by side and that will really give you a solid answer to what is working or will keep on working.