@raisrael,
As I posed the question - I shall reply. I am disappointed in those who decided not to answer the question but instead decide that looking into the background of someone who wishes to friend me is creepy. I have close to 5,000 "friends." I do not know all of them. I occasionally get requests from people who I do not know and who, I can see by the public info on FB, seem to be fishing. Looking at mutual friends, and groups to which they belong, can be helpful in making that distinction. So, in short, to most everyone who responded here- I still ask the same question. Has the category "groups" disappeared from the "more" tab? If so, why? And how can it be that there is seemingly no mention of this anywhere?