The CPM rates discussed below refer to one ad.  The M1 UPS will remain very clean with 3 ads per page max.  These figures also do not address click-through rates.  The M1 projection of an EFFECTIVE CPM of $8/CPM in year 4-10 is already below industry standards for a defined adult demographic. Many of the proposed portals will command CPM rates in the $40-$50 range.

Source
The Colorado tourism office published 2008 rates for cooperative online advertising with travel, outdoor adventure (an M1 Lighthouse portal), health, and other topic related websites. Banner display ads start around $12/CPM.

Source
"Social networks are where pageviews are generated these days,.... Bebo, with 22.9 million unique visitors in February and 10.3 billion pageviews (per comScore)"  *10.3 billion is roughly the M1 forcast for the entire year in 2018.

Source
Analyst eMarketer predicts that by 2011, $4.1 billion will be spent worldwide for social network advertising - a dramatic increase from the $480 million spent in 2006. In 2008 alone, global ad spend in the social networking arena is expected to increase 75% year over year, amounting to $2.1 billion (eMarketer, Social Network Marketing: Ad Spending and Usage, December 2007).

One of the founders of LookSmart, Val Landi lives in Park City is an informal partner and advisor (One of his sites will provide blog content for the CosmosPortal). He estimates, M1 Network partner portals (like Amnesty) and WiserEarth will command $20-$30/CPM.