Search Engine Watch Moderator, 5starAffiliatePrograms, started a thread she named Affiliate Commissions $6.5 Billion - SEM $5.75 Billion showing a MarketingSherpa.com Affiliate Summit 2006 Wrap-Up Report that says that affiliate "Commissions to Reach $6.5 Billion in 2006."
That is a lot of money when compared to a SEMPO study showing that "Search Engine Marketers Spent $5.75 Billion in 2005".
Keep in my SEM & Affiliate Marketing are very intertwined.
Forum discussion at Search Engine Watch Forums.