Joel Johnson, Jonah Lehrer, Charlan Nemeth on how following strangers on Twitter can expand our creative potential. Michael Onesi and Tim Carmody on the proliferation of blogs being published as books. Michelle Parise on the overwhelming amount of digital photos and whether theyve lost their meaning. Don Tapscott on his new book MacroWikinomics. John Winsor on how to do better at collaboration and co-creation in the advertising world.