Web 2.0 is a term bandied about by every company with an elevator pitch hoping to score venture funds. Depending on who you ask, the definition is a moving target. Tim O’Reilly does a great job of clarifying what his vision of the term means in a recent post on Web 2.0. One place where Web 2.0 is a daily conversation is TechCrunch, a weblog dedicated to obsessively profiling and reviewing every newly launched web 2.0 business, product and service. Chris recently talked with Mike Arrington of TechCrunch about emergent Web 2.0 trends and recent developments with Google’s spam problem.