No Longer Supported!
Do to changes in apis and restrictions on requests that differ from provider to provider I don't have the time to maintain this anymore. Keeping this code up as it is still in use and functional for some parties.
The Quick 'n' Dirty Edition
Download the files
Make sure you have the latest and greatest Jquery running on your site (>1.7).
Get your Facebook, Google, or Flickr User ID. If using Flickr you will also need a Flickr API Key (http://www.flickr.com/services/apps/create/apply).
Add this code to your site:
<link rel="stylesheet" href="css/plusgallery.css" /> <script src="js/plusgallery.js"></script> <!-- The HTML -->
Read more about optional data attributes and how to use them at http://www.plusgallery.net