NOTE: This trick only works with the Windows version of Dropbox
Right now, Dropbox is giving away free space for trying out an experimental build of the software. You have to install Dropbox for Windows, and then when you plug in a USB drive or SD card with pictures or videos on it, Dropbox will give you 500MB for every 500MB you upload up to 4.5GB. It works using Autoplay, so make sure that’s enabled. Go find some pictures and videos to use, and get going!
The page with the current experimental build is here: http://forums.dropbox.com/topic.php?id=52900











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