I’ve been using gist.com for quite a while, and have seen it’s constant improvement. It is a great tool for keeping up on what is happening in the public life of your associates and contacts, and to use as a reminder for who you may need to connect with because it’s been a while.

Someone asked, “How useful is Gist.com, and what are the strengths and weaknesses of the product?” You can read my response at quora.com.

[UPDATE] Gist was acquired by Research In Motion (RIM) February 2011, and then closed. I believe it could have competed against LinkedIn.