Well here you go.... Spam is more popular than ever! 
http://online.wsj.com/article/SB10000872396390444358404577606921965843682.html

http://online.wsj.com/article/SB10000872396390444358404577606921965843682.html
Strong Spam Sales Boost Hormel's Net Profit
Hormel Foods Corp. fiscal third-quarter earnings rose 13% as all of the food-processing company's segments reported increased profits.
Hormel, whose food brands also include Spam canned pork and Dinty Moore stew, has seen revenue growth for nearly three years as cost-conscious consumers choose to eat at home more often.
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Grocery-product sales increased 21% and earnings rose 32%, led by improved sales of Spam products and its MegaMex Foods joint venture.
Much of it is automated too, but that is easier for software to spot. The best spam makes at least some attempt to appear to be a genuine post. And many times you won't see any obvious ads or links in the post. Instead, they bury invisible text with links so the Google's search bots will find them and improve their ratings which are based on the number of links they find to sites.