I think a website like this could help validate a lot of mass market consumer driven business ideas. However, the effectiveness of using mechanical turk would r

I think a website like this could help validate a lot of mass market consumer driven business ideas. However, the effectiveness of using mechanical turk would rest on who the mechanical turk users are. I don't know if you get the right type of feedback from turk users for b-to-b apps. I would suggest you take an idea that exists that is not popular and test it out.