Large file transfer
yousendit.com - Lets you transfer, for free, files up to 100 meg from your computer to an email account of the person you want to receive a large file. You will also get a URL, which you can email someone. There is a free trial period for large file transfers (up to 2G). When you upload your file, yousendit sends email to your recipient with the link to download the file. That way nobody has an overquota mailbox.