Like Winzip, GMail Can Create .ZIP Files Online - Google

Do you know that GMail can be used as a file archiving utility just like
Winzip, 7-Zip or Winrar.

To create a ZIP file using GMail, compose a blank email message with Yahoo!
Mail, Windows Live Mail or even GMail and put your GMail address in the "To:"
field.

Upload and attach the files that you want to get zipped. (GMail supports
attachments upton 10 MB in size.)

Once all your files are attached to the email message, hit the "Send Message"
button and wait for that email to arrive in your GMail inbox.

http://labnol.blogspot.com/2007/03/like-winzip-gmail-can-create-zip-files.html

--