NY Times, WSJ, Myspace, Foxsports, Hulu (45%), askmen, rottentomatoes, photobucket, IGN, gamespy... Seriously, these sites all have tons of advertising all over the place. What will a pay-for model get them other than a major loss of market share?
I totally disagree.. To me it seems powerful, simple, and very flexible. Japan Post, Starbucks, Dell, all customers... Non-profits get 10 licenses and over 4,000 nonprofits use it. http://www.salesforce.com/foundation/ Worth a look at least.