What is the difference between my personal Gmail account and my cgxchange.org account?
It’s the same as the difference between a Google account and a Google Apps account. They both allow you to access and use several of the same Google products, but they are separate accounts. “A Google Account is a unified sign-in system that gives you access to a variety of free Google consumer products. (…) If you use Google’s email service, Gmail, then you already have a Google Account. However, it’s not necessary for you to create a Gmail email address to have a Google Account. If you signed up for any Google service in the past with your own email address (example: your_name@rediffmail.com) this account is also a Google Account. In short, if you sign in to any Google product or service, you already have a Google Account.” Google Apps is an enterprise suite of online applications, including Google Sites, Google Docs, Google Calendar, Google Video and Google Talk – hosted at Google and available via the cgxchange.org domain for CGIAR staff.