Because I got more and more emails and notifications and had no time for several month to even initially create a profile skeleton, I closed my LinkedIn account. I just have no time to maintain it. It was, however, interesting how many updates I got for very few contacts I had. I got updates from people who knew people, who know other people and they are in touch. Somehow interesting, but I do not exactly know how to leverage (this probably precious :-)) information.
It reminds me on the JPA-Entities eager loading problem, where you load with the first entity and get the whole tree (database) back...
You can still reach me via this blog, twitter or email. LinkedIn, however, is a really interesting Java application :-). Sorry for any inconvenience.