It's cool, but I wish there was a way to separate what jobs you want mail for. (different types of programming, marketing, seo, product management, there is a lot of variety.)
I can imagine if I was paying to send an offer out to find people to solve hard CS or math problems for me, I'd be disappointed to find that 90% of the recipients were (for example) undergrad marketing majors.
But we do have a great mix of backgrounds..about 30% marketing and the rest are engineering and design.