I think the key here is to create a forum that connects the two pieces of the puzzle: engineers and business folk.

I've struggled finding a co-founder as well and have milked my network for everything I can squeeze out of it. I'm determined to find an engineering partner who I can really build many projects with for years.

If you're looking to build something, find a way for people to connect directly and strip away the antagonism/jaded-ness that usually shrouds business people & engineers from connecting effectively.