Here are some of the blogs and articles whose commentary I most enjoyed:
People Are Stupid, Children's Literature Edition
Statement Regarding the True Value of "Higher Power of Lucky" (by ALA)
'Scrotum' as a Children's Literary Tool, by Susan Patron
Something interesting, though - I've noticed that few of the people commenting on Lucky and Patron's scrotum use (pun intended) have actually read the book. Or if they did read the The Higher Power of Lucky, they haven't talked about anything but the first page.
Anyway, I read the book this last week and absolutely loved it. I blogged about it in detail over at The Newbery Project (see More Lucky) - and you can also read some thoughtful comments by others who have actually read the book there.