Buying Bulk LEGO Parts

I had an email inquiry about my LEGO sculptures, and I sent the person a bunch of information about where to get LEGO parts in quantity. But then I thought it might be useful to share that information with the world on my blog, so here it is:

[Update 12/23/2008: the rest of this blog entry has been moved to a Page “Buying Bulk LEGO” so it can be found more easily.]