Hello dear friends
I also tried to find it, as I wanted to be able to route new participants that I am introducing Second Life to, so they can go to this place and learn the basics skills before joining the courses and activities that I and others offer through Second Life.
I searched and searched and then finally found it:
http://maps.secondlife.com/secondlife/Welcome%20Island%20Public3/29/227/25
Thought I would post it if other also want to find it and not want to put down 20min just to search around in order to find the SLURL
Yours Truly
Jesper