I've succumbed and joined etc etc. But I now have emails with requests to become my friends and a request to join a group I administer. I've tried clicking the links in the emails but can't see on my profile or homepage where to accept the requests?
Log on to Facebook. Over on the right-hand side of your home page you should have a section headed "Requests". Under here it should say something like "x friend requests". Click on that and it will take you to a list of friend requests with the option to confirm or ignore each one.