Hi.
Our company, 6 Sigma Technology Group, is rolling out our Black Belt program right now, based on the training we have been giving to customers for years.
Regarding other sources, on-line is not a good idea for Black Belt training. You need more intense and interactive training. In my experience, I have seen good results from BMG, Air Academy Associates, and Motorola University. I would stay away from the community colleges and the Universities that are pushing it real hard on the Web (I will not name anyone, but you can figure it out). ASQ is also pretty good.
Good luck with it.
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