You mean how to upload them to the Internet? Well, first make sure to place all your map folders / files on the desktop, and archive them. Then, go to
box.net. You'll need an account to be able to upload there, so go
here and complete those fields. I'm not sure if it'll request validation, but if it does make sure to check your E-mail.
After that, you'll be led to a page with
All files and folders. There you'll see a button called
Upload. Click on it, browse your .zip / .rar / etc file and press upload. Wait a little and then you'll see somewhere a button called "Share" - press on that one and copy paste the given URL to your friends to download.
Hope that's what you meant.