[tripzilch]

There's a few that provide interesting and new ways to connect with and donate to charities (I forgot their names, but you must've seen at least a couple pass by the frontpage).

There was one developing a robot spoon with stabilizing anti-vibrations for people with Parkinson's. I remember the look on the faces of elderly people in the video, as they could finally again bring peas to their mouths without spilling everything. That was genuine, they didn't need that "I appear in all the startup videos" guy or hire actors.

There's a bunch of startups working to bring encryption and other privacy-enhancing tools to the masses.

These guys providing mobile laundromat service for the homeless. Though I dunno if they were making any profits with that.