I'm a victim of the LinkedIn security desaster, too.
Find here some additional information about the LinkedIn security desaster:
Report about LinkedIn Password Hack from PCWorld
Links to articles in Computerworld and arstechnica
Link to LeakedIn.org
It's not the first time that LinkedIn was hacked. In the past, my email address in my LinkedIn profile has been hacked and misused for spam.
I'm considering to close my LinkedIn account.
Addendum, 8 / 14 / 2012:
Today, LinkedIn sent me two unrequested emails with "news" that I do not need to know.
When trying to unsubscribe from the "news", I realised that my LinkedIn password has been changed. I really wonder who has changed my password. Has not been me, since I'm using KeePass and KeePass never forgets or changes login data.
Very strange. Another leak?