this is a really great post and identfies a number of key themes including - keep it simple, keep it personal, dont spread yourself to thin and work out how to monetize..
My presentation on Social Media at my company was a big success. The word Social Media has almost made it into our marketing budget for 2009. If it doesn't I am almost certain that funds will be re-allocated as the year rolls on.
The article promotes, believe it or not, a common sense approach to social media, long over due in my book, but I'm not sure we're there just yet. I highly recommend the few minutes to read it ...
I second Saxonchap's assessment. Ravit Lichtenberg has written a succinct assessment of the social media universe at this time and given pointers to approaches and tools that will usher along 2009's social media evolution.