Training

I am a newcomer to Ubuntu and have just installed Gutsy. I have average knowledge about computers but really want to know more about Ubuntu. I get really confused by the different terms and many well-meaning people often quote or expect you to know things, which quite frankly sound double dutch to me. I have looked at books on Amazon, but they tend to be old or some are not due out until next year.

I'm just wondering that with there being an upgrade every 6 months, how us laypeople would be best advised to learn all we can when the available books always seem to be out of date. Us newcomers feel better when a book says 'click this and this will happen' and it does. I have tried to find some websites. Should we rely on fee paying courses on the net?