If you operate a website you often need to be able to crop and resize images.
If you use a Mac, you have a wide range of excellent tools at your disposal, including the excellent ImageWell.
But if you use Windows, it ain’t that easy.
It is web based (and free), you simply go to the website, upload your image and you can quickly and easily crop and resize your images.
There are a few other tricks you can pull as well, but for a website owner, cropping and resizing are the main features you need.
So if you use Windows and run a website, try it out.