One idea-- it would be awesome if I could set up an account with a list of topics I have experience in (maybe just pulled from linkedin?), and be automatically notified when an application relevant to my knowledge is submitted.

I bet there would be thousands of people happy to chime in once a week / month when a patent in a specific field they have experience in was submitted. It would be a great way to build up a base of expert knowledge without requiring people to be constantly polling the site.