My wife and myself are taking a break from Facebook - partly because it's a vampyric timesuck nightmare with very little payoff, and partly because it has all of the drawbacks of being at a large party and none of the benefits. Of the various time sinks I've "invested" in (recognising that something to which you devote time for no tangible reward can hardly be termed an investment) it's probably the worst - at least with WoW I was levelling up.
The weather here is about as fantastic as one could hope, and we have an adorable son who is becoming more interactive and vocal day by day. Spending time with him really is an investment. I'm hopeful we can do more of that and less of the internet trawling.