TechCrunch mashed together the online advertising revenues of the big 4, being Google, Yahoo, Microsoft, and AOL, for the third quarter. The result? Just 0.6% growth, which is still some $50 million increase, but pale in comparison. Read Erick Schonfeld’s post for graphs and more. Also, don’t miss the blog networks roundtable for some more bloggish thoughts on the current financial situation.