New with Ubuntu (7.10 Gutsy Gibbon) – A good place to start

http://www.cs.cornell.edu/w8/~djm/ubuntu/gutsy/

If you are new to Linux and Ubuntu this site is a good place to start. It shows different commands (to install through the Terminal) that a new Ubuntu installation can be updated with. For example Media players, Flash, and more that is of good use. Personally I think that to add extra respositories is a good start and it means that your installations will receive updates and upgrades and also you get access to new installations. These (some respositories) are that follows (copied from that site):

deb http://us.archive.ubuntu.com/ubuntu/ gutsy main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ gutsy main restricted universe multiverse

deb http://us.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ gutsy-updates main restricted universe multiverse

deb http://us.archive.ubuntu.com/ubuntu/ gutsy-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ gutsy-backports main restricted universe multiverse

deb http://archive.canonical.com/ubuntu gutsy partner
deb-src http://archive.canonical.com/ubuntu gutsy partner

deb http://security.ubuntu.com/ubuntu gutsy-security main restricted universe multiverse
deb-src http://security.ubuntu.com/ubuntu gutsy-security main restricted universe multiverse

And how this is done is through locating Software Sources which you find under System in your menu (Menu/System/Software Sources). If you are asked for a password you enter your user accounts password. Then you go to the Third-Party Software tab and click on Add. Click on Add Source to save it. One at the time you add the extra respositories. When you are done you click on Close. When that is done you open up the Terminal which is located in the Menu under Accessories (Menu/Accessories/Terminal). Type (or copy and paste) this piece of code into the Terminal and hit Enter:

sudo apt-get update

If you are being asked for a password (sudo password for username) you type in your user accounts password and hit Enter.

See the link for more useful installations.

User Accounts:

In User Settings under System in the menu (Menu/System/User Settings) can user accounts and passwords be changed. You should setup a root password and write it down. Each individual user can be given privileges.