Probably reaching out to minority college programs, graduates, and professional organizations. If your black, woman engineer, for example, you aren't necessarily reaching out to your old boys network for prospective jobs.
I'm assume you assume they sit in their chair all day and spin around in circles.
Harsh. No. I just had no idea and would be honestly curious. Just as I would be of any other job I never knew existed!
My apologies. I thought you were being facetious. Loads of posters on HN are when if it doesn't conform to their own world view.