KLM Royal Dutch Airlines plans to launch a service in 2012 that will enable you to pick who you sit next to on an airplane by visiting their Facebook or LinkedIn pages. "Meet & Seat" will be an opt-in service (similar to that already toyed with by Malaysia Airlines), so you can still fly anonymously -- as anonymous as air travel gets these days, anyway. It could be great for making friends or developing business contacts on your next international flight, or it could make for some really awkward conversation too. "So, your Facebook profile says you like Justin Bieber?"