Overview
Google’s Linux software packages will automatically configure the repository settings necessary to keep your Google Linux applications up-to-date. Please download and install packages from the appropriate product pages.
Google Chrome
Google Earth
Google Music Manager
Google Voice and Video Chat
mod_pagespeed for Apache
Google’s Linux packages are signed with a GNU Privacy Guard (GPG) key. Google’s packages will automatically configure your package manager to verify product updates with the public signing key, but you may also install it separately if, for instance, you want to verify the integrity of an initial package download. Follow the instructions below to manually configure your package manager to use the key.
http://www.google.com/linuxrepositories/