From an actual practioner, that is someone who works in a corporation and spends their time doing marketing for a living.

I for one was beginning to give up hope!

Here’s the URL from a guy named Sam Decker who works at Dell.  Even more impressive … people actually leave comments on his blog.  Most of the marketing blogs out there don’t seem to solicit any response at all, ours included.  Of course this may be a function of the size of the Dell marketing community, which has the critical mass to get and keep a conversation going.  See especially this entry on Six Sigma and its applications to Marketing.