How to install the free Microsoft truetype fonts

Prerequisites: add universe and multiverse repositories.

This posting describes how to install the Microsoft free truetype fonts, including Arial, Comic Sans, Times New Roman and many other. Many websites make extensive use of them, so it is a good idea to install them. After installation they can be used in every Gnome (or even KDE) program systemwide.

Open a terminal window and type in:
sudo apt-get install xfonts-intl-arabic
sudo apt-get install xfonts-intl-asian
sudo apt-get install xfonts-intl-chinese
sudo apt-get install xfonts-intl-chinese-big
sudo apt-get install xfonts-intl-european
sudo apt-get install xfonts-intl-japanese
sudo apt-get install xfonts-intl-japanese-big
sudo apt-get install xfonts-intl-phonetic
sudo apt-get install gsfonts-x11
sudo apt-get install msttcorefonts
sudo fc-cache -f -v
sudo cp /etc/fonts/local.conf /etc/fonts/local.conf_backup
sudo gedit /etc/fonts/local.conf

Search for "Uncomment below to enable the freetype autohinter module".
Remove the comments as described and you're finished.

Some more information in the Ubuntu wiki under http://wiki.ubuntu.com/FontInstallHowto