I ran across some articles about NextGen, and NASCAR. I might start using this stuff even though I do not know how it performs. Nothing fancy, or too in detail, but thought some might be interested.
http://network.yardbarker.com/author/article_external/7773532
http://startnparkblog.com/?p=4278
http://startnparkblog.com/?p=4384
http://network.yardbarker.com/author/article_external/7773532
http://startnparkblog.com/?p=4278
http://startnparkblog.com/?p=4384