We're working on adding institutional accounts. There are some complexities involved, mainly involving legal issues and various whitepapers that need to be writ

We're working on adding institutional accounts. There are some complexities involved, mainly involving legal issues and various whitepapers that need to be written, but I wholeheartedly agree with your idea: early adopters are a great way to get institutions to adopt a product. As for your second suggestion, do you think a way for current users to send potential users an invitation to try a demo account (a sandbox) would do the job?