linux - How to add disk space to /var/www for my websites?

I did $ df -h and it threw this:

Filesystem            Size  Used Avail Use% Mounted on
/dev/md1              9.7G  1.7G  7.6G  18% /
/dev/md2              683G  211M  649G   1% /home
tmpfs                 4.0K     0  4.0K   0% /dev/shm

The problem is that my websites are located in /var/www, which I guess belongs to /, and they won't be able to use the disk space for things like images, that need to be placed inside the webroot, eg: /var/www/my_site/public_html/

What can I do about it? Should I move disk space from /home to / ? How?
Or move the sites to /home ?
Any thoughts?

Im using centos 5.5 and apache 2

Answer

Easier way will be to move the data to the larger partition, and symlink back into place.

 $ mv /var/www /home/

 $ ln -s /home/www /var/www