You can find online help resources for Google Apps at Princeton in the OIT KnowledgeBase (Princeton-specific solutions) and in the Google Apps Learning Center (for general solutions).
Following are solutions for some of the most frequently asked questions about Google Apps at Princeton.
Princeton-specific help documents
Settings for Mac Mail OS X
Settings for MS Outlook 2011 for Mac
Settings for MS Outlook for Windows
Settings for Thunderbird
Settings for Android smartphones
Settings for Windows smartphones
Settings for iPhone and iOS devices
See the OIT KnowledgeBase for all University-specific KB solutions for Princeton Gmail and Google Apps.