s3ganize provides a lot of features. Important features are listed below:

1. Support for multiple Amazon S3 Accounts
2. Security: s3ganize uses secure connections (SSL) for safe data
3. Windows-Explorer[TM]-like user interface (UI)
4. Transfer statistics: control your costs!
5. Compatibility to a lot of other S3 Tools
6. Easy installation
7. Upload and download multiple files simultaneously
8. Its free (please note: Amazon S3 has its own pricing!)

Compatibility

 Important: I am NOT interested to save your data on Amazon S3 Storage in a propritary format or with an propritary signature to avoid other programs can get any access to it! s3ganize will ever use formats and signatures like the most other free tools do. Please feel free to contact me on problems accessing data stored with s3ganize when using other software.

 Operating Systems:

s3ganize can be installed currently on Windows-Systems. Other Platforms like Linux and Mac OS-X are planned.
As a friend of interoperability I'm still working on a multiplatform version of s3ganize.

 Sample Screenshot

Take here a look at other screenshots.