Google Linux Software Repositories

http://www.google.com/linuxrepositories/index.html
http://www.google.com/linuxrepositories/testrepo.html

Ubuntu:~$ sudo wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -

Ubuntu:~$ sudo vim /etc/apt/sources.list
# Google software repository
deb http://dl.google.com/linux/deb/ stable non-free

# Google testing repository
deb http://dl.google.com/linux/deb/ testing non-free

Ubuntu:~$ sudo apt-get update

Ubuntu:~$ sudo apt-get install picasa