Now that I'm no longer employed by my former company, I have updated my LinkedIn settings. I also registered glenfarrelly.ca yesterday and thus am now qualified to join Canadian Internet Registration Authority (CIRA), so I added that to my profile as well.
LinkedIn offers a lot of features that are really promising. However, many of these features depend on network effects to make them useful. Lots of people I know have registered on LinkedIn and many have developed good networks, but otherwise I don't see many people doing more than that.
This short, informative video by CommonCraft outlines how to make the most out of LinkedIn.