Within the new ad system (using 15% of their ad network), you can purchase advertising across all the member sites within Entrecard. I wasn't aware of this (the link is rather hidden on the homepage) mainly due to the fact that it wasn't promoted heavily. I figure they want more of the "outside" to advertise on the site, rather than purely the members.
I don't know how successful this has been - three of the ads that appear in my Sponsor Ads area are still from Entrecard. So, if this is true, they haven't enticed any long-term deals yet.
Pricing is $0.60 CPM for the entire network or $1.20 CPM for targeted categories (choose from one of over fifty categories). They will only accept 125x125 pixel advertisements, and a $25 minimum deposit is required.
The main benefits, as stated from this page are: maximum exposure and click-throughs, professional results, highly effective with detailed stats, and discounted rates.
What do you think of this pricing model (quite similar to the last time advertising was introduced) and how it is being marketed?