I'm glad to see that someone commented his S.H.A.M.E project link in the comments down under the original article, to the point that it's worth re-linking here: http://shameproject.com/profile/malcolm-gladwell-2/
I read the Tipping point and found it quite an interesting book, but I've not bought anymore of his books after I had read his profile/sources linked above.
I read the Tipping point and found it quite an interesting book, but I've not bought anymore of his books after I had read his profile/sources linked above.