Apparently, Facebook employees refer to users with over 1000 friends as whales. After 2 months, I'm approaching the 200 mark, which presumably makes me a small porpoise. It's worth considering that it took me nearly 3 years to get that number of contacts on LinkedIn.
Of course, we aren't comparing apples with apples here. My Facebook friends list contains pretty much everybody I know - personal friends, clients, ex-clients, journalists, people I've met virtually through blogging, etc. LinkedIn is purely for work contacts. But there is no doubt at the moment that FB is getting more of my time than LinkedIn.
I'm curious to know what LinkedIn intends to do to redress the balance.