Yesterday JibberJobber blogger Jason Alba posted about a situation in which a LinkedIn member (resume book writer Susan Ireland) had her account suddenly deleted for no apparent reason. She had to spend hours and hours recreating her profile and reinviting people to connect with her. Jason recommended that everyone immediately back up their contacts. It was an easy process (once I figured out that a popup blocker was thwarting me), and now I feel more secure knowing that all my LinkedIn connections are safely stored in my Yahoo e-mail address book.
Jason himself is a force of nature. He's working on his third online networking book (I'm on Twitter--Now What?). He blogs, he's ubiquitous at conferences (I was able to catch his schpiel at the Career Management Alliance conference last year in Louisville), and he's got this really cool job search organizer site, JibberJobber. You can do a lot there for free, so check it out.