If you didn't watch Mark Zuckerberg's Facebook announcements last week — and of course the vast majority of Facebook users did not — you may be in for a surprise. Aside from the dramatically redesigned Facebook Timeline profile pages, which roll out in the coming weeks (and which I've grown to love), Facebook's new system to auto-share what you do around the web may catch many Facebook addicts off guard.
In fact, even those people who know exactly...
