Social Networking Redact

Don't you hate it when news completly obliterates an opinion taken on a previous post?   I, like everyone else, feel compelled to post about the latest Facebook announcements.  As astute readers will note, in previous posts, I thought the old school social netorking sites would play out, in favor of more vertical based sites.  Facebook has essentially leapfrogged that position by offering itself as the Internet's "social-networking platform."  Any site can take on this functionality.  This, I get!  Also by allowing a more open, yet controlled platform, its users have more power to create their own experience through partnerships and mashups.  These guys are pretty amazing. I vow today to bow down to the Zuckerburg Gods. But again I ask....won't these users want to keep some of this amazing content offline?