Each week Joshua Fruhlinger contributes This is the Modem World, a column dedicated to exploring the culture of consumer technology. Here's the thing: I know who I am. I don't need Facebook or Google or Microsoft or Apple or anyone else to collect data and tell me what I'm interested in. I'm pretty sure I know what I like and don't like. I'm also pretty sure I know my friends, and if I am looking for a recommendation on something, I'll hit particular ones up based on what I know of who knows what. Know what I'm saying? This week Fac
