I just get a periodic email saying that so-and-so from my Linked-in connections is now connected to so-and-so.
It couldn't be much less interesting to me. I never would have signed up except when Jenn was plotting to get back in the workforce, she asked me to sign up so she could have more names. Then I guess a couple other people found me. Somehow. I can't even imagine what that entailed. Do people just randomly browse the master list of LinkedIn names? Weeeee? But someone found me and that led to a couple more.
Anyway, someone I haven't seen for 15 years whom I have had to basically put on ignore at Facebook is now connected to someone I never heard of so party down.