Gspace is a Firefox extension that allows you to use your Gmail Space, (5.6 GB as at 12/03/07 and growing), for file storage. It acts as an online drive, so you can upload files from your own system, and then access those files from any system with Internet access.
The interface will make your Gmail account look like an FTP host. After installating Gspace an option called “Gspace” will appear in your “Tools” menu. This option will open a new tab with an FTP-style interface.
You transfer files by highlighting them and hitting the directional arrow. Uploading a file sends an e-mail with your upload attached to your Gmail. By creating an appropriate filter and folder, it is easy to keep track of the files you’ve uploaded.
Personally I use it for storing/sharing files. I also find it to be a great tool for backing up photos and music files: this saves me zillions of CD/DVD’s. A real benefit is you can view your photos, and listen to your music directly from Gspace. A very nice feature. As well, Gspace is a cross platform plug-in that also works on Linux and Mac.
Download at: https://addons.mozilla.org/en-US/firefox/addon/1593