Windows only: Find some files, drag them onto a button, click to copy the URL. That's how simple Windroplr makes file sharing through its free Windows app, free online storage and easy setup and sharing — just like Droplr on Mac.
Windroplr uses Twitter for its authentication and requires .NET 4.0. Beyond those small hurdles, though, Windroplr runs really small and works in tight fashion. Click the system tray app to show a small square on your desktop. Drag one or more files onto the square — multiple files will automatically be ZIP compressed. Your Windroplr icon fills up in the tray, and when it's ready, a balloon pops up, which you can click to copy the very short URL for sharing.
That URL leads to a minimalist page with just your file or files listed for download. With image and music files, of course, a browser can just preview them in the same window, but downloading is simple too. The links are perfect for Twitter, Facebook, IM and email. The storage limits are unknown at the moment, but a 9MB MP3 went through just fine, and fairly fast too.
Windroplr is a free download for Windows systems only.