In the For-What-It's-Worth category, if you want to send very large files, there is a service that has a free component that lets you send up to 100meg files called YouSendIt.com.

How it works: You can subscribe without any fees and you upload your file to the site with the email information for your recipient. The YouSendIt folks email a note to your recipient with a link for downloading the file and it usually expires after a week or two. I'd suggest try sending it to yourself the first time to a home email address to see how it works. I've used it a couple of times and it is convenient when you don't want to burn a disk and mail it or load the file in a flash drive and deliver it. If you buy the service, you can send up to 2GB files.

Special Collections at my library uses this, and I've had them send large scans to me this way.

SRS