LinkedIn invites are flooding in?!

I don't know what's going on, am I suddenly famous? LinkedIn invites are picking up. I think it's more likely that LinkedIn has come up with a clever way to encourage people to link to others. I don't know, but I am receiving LinkedIn invites, from people I never heard of before, and from other cities and even countries. Whatever, first I was feeling important, now I am starting to feel a little besieged!