Well, Google counts some of my back links but the
PR for all the sites I have been doing article marketing for has consistently gone down. But, then, who says that
PR really is that important except link exchange freaks.
But I guess if you really publish heaps there of articles there will be so much clutter all over the web pointing to your site and producing your name in the SE that it somehow does help your business - "critical (clutter) mass" - That is why articlemarketer.com seems interesting, just I will not use my real name when I try it....
Cheers.