One fascinating thing about social networking – Facebook, Twitter, Stumbleupon, etc. – isn’t simply how it lets us connect with each other but how it lets us feed each other’s imagination. It’s never been easier to share ideas, insights, opinions and perspectives. We can open each other’s minds with everything from images, to sound bites, to content we might never find on our own. It even offers us a new way to collaborate. Use it the right way, follow the most interesting people, and you save a lot of time, stay more current, get introduced to new subjects of interest, and maybe even become a little smarter. For example I just found this. It’s a sketchbook, sent in random order between four artists, two in Brooklyn, two in Belfast. Each artist had five days to complete an image and send it off to one of the other three for a visual response. A very cool project that I discovered using Stumbleupon, and one that gives me all kinds of ideas for similar based projects that could be done entirely online, in the social networking space that turned me onto it in the first place.