Didn't even occur to me (obviously) that you were talking about support materials, sorry. But, as long as we're on the subject, I'm a big fan of DropBox (
http://www.dropbox.com) for such things. Set up a hierarchy in your DropBox folder and your machines stay up to date with each other with no action required on your part except to connect to the internet. There's a free option if you can get by with 2 GB or less of shared storage, otherwise there are paid options which offer much more storage space. You can also publish external links to individual items so you can mail a URL to someone instead of trying to send them an enormous file, and you can also set up shared folders with other DropBox users.