Did you think your Google Gmail was safe? I thought it was safer than other Web-based mail services, but according to Andrew Lih you can choose to connect to Gmail via a little-noticed link to a secure server.
Lih describes these benefits: "Not only is your password not passed over the Internet in the clear, the entire session is encrypted and untappable. This will prevent anyone from snooping on your e-mail as it travels from Google's server (likely in California) to where you are. Gmail is so quick, you'll never notice the difference in speed."
Better safe than sorry, I would say.