installing new fonts

https://wiki.ubuntu.com/Fonts
http://www.fontsquirrel.com/

There are various locations in GNU/Linux in which fonts can be kept. These locations are defined in /etc/fonts/fonts.conf; standard ones include /usr/share/fonts, /usr/local/share/fonts, and /home/<username>/.fonts (where <username> is your user name).

The easiest way to install a truetype font is to press alt-F2 and enter the following code (this will open nautilus in the right directory):

gksu nautilus /usr/share/fonts/truetype

Then create a new directory, name the directory whatever you like (choose a name that you remember if you ever need to backup your fonts personal fonts). Copy the fonts into that directory and finally rebuild the font information files by pressing alt-F2, mark 'run in terminal' so you can see the progress and entering the following code:

sudo fc-cache -f -v

Download and install all the Google Web Fonts in Ubuntu

TypeCatcher allows you to search, browse, and download Google webfonts for off-line use. You can preview fonts with adjustable size and text.

Install TypeCatcher in ubuntu
Open the terminal and run the following commands

sudo add-apt-repository ppa:andrewsomething/typecatcher
sudo apt-get update && sudo apt-get install typecatcher

done!!!!