To create a link (alias) to another directory
(so you don't have to type cd .. cd ..
 cd it/www/data, etc.), type:

ln -s [path] [nickname]

ln -s /it/www/data/stuff stuff

creates a symbolic link from your directory
to the stuff directory. So... 

When you're in your home directory and type
cd stuff, you automatically go to the stuff
directory without having to type cd .. cd ..
cd it/www, etc.
.