LinkedIn has grown to an enormous professional networking site with over 150million members now. It was only a few short years ago that I began to take it seriously and there were just over 14million in those days. There was a time when receiving an invitation to connect at LinkedIn, that LinkedIn would have a warning message at the bottom of the email invitation about whether you should connect with people you don't know.  People used to be penalised if they got 5 or more IDKs (I don't knows) … [Read more...]