Gladinet

Pics on Picasa, docs on Google Docs, files on Windows Live Skydrive or Amazon S3 ... typically, you can only access these files from the corresponding sites using your web browser.

Now, the free application Gladinet gives you the opportunity to access these files from your Windows file explorer, letting you manage them just like you do with your other local files.

With Gladinet, you can list, display, save, and upload these files, accessing or editing them locally with your own applications (editing Picasa images with Photoshop or Google Docs files with Microsoft Word, for example).

Beyond that, Gladinet lets you share local directories on the network, making it even easier to have all your files available online to access from any device.