Hi Geoff;
I tried to sign up for Linkedin a couple of years ago when starting a search for a new job. In the process, I did something that was definitely "wrong" in my opinion, and checked a box I shouldn't have or didn't check a box I should have, and suddenly the site latched onto my email address listing, and send out "invites" to everyone on it! Nothing I could do to stop it. It seemed like I had people pissed at me all over the world. I heard from people I don't think I ever met even on line asking me to stop with the invites! That is probably what's happening with you. If you know a lot of people and are in a lot of address lists, you'll still be getting them because they go out automatically.. I haven't tried to log on since that day and things have died down, and I doubt I ever will log on to their site again!
Type at you later,
Dan McEntee