The nice people at LGM have a new website.
Magically, the new posts on the new site seem to be feeding properly into the old entry in my feed reader, so maybe you don't have to change that part.
I for one applaud the new, proper use of the serial comma, the NYT and other muddlehead devotees of the AP style book be damned. We are all Chicagoans now!
However, if I'm not mistaken, you're not supposed to use the serial comma when you use an ampersand, so I'm sticking with the explicit and in my blogroll. Use of ampersands is frowned upon in any case, due to ugliness, problems with HTML parsers, &c.