Why sharing isn't always the right thing to do

Mark Potts points out the recent surge in LinkedIn in activity and wonders about its value.

I too wonder if this is something of real value but continue to play along because somewhere in the back of my brain I keep thinking this will prove of value down the road. I just can't articulate it.

Now we have Richard Waters of the FT pointing out one downside to sharing your network. At some point you do have to wonder how much you really want to share.