Best Image Croppers ready to use for web developers
http://woork.blogspot.com/2009/02/best-image-croppers-ready-to-use-for.html

Like the title says.

Unobtrusive script that allows users to rotate, resize, crop your images with minor changes to your site.

Working with the jCrop Plugin image corp

Working with the jCrop Plugin - NETTUTS

Cropping

If you’re used to clicking the crop tool dragging the tool over your image and pressing Enter, it may surprise you to know that there are other options that you can use when cropping in Photoshop.

This article is a summary of a 3 fast and easy CSS techniques you can use to display only a portion of an image in your content. All techniques explained here actually need only couple of lines of CSS. However, it is not cropping in a real sense of the

These techniques can be very helpful if you need to keep images at a certain size, i.e. thumbnails in the news section or something similar. Being able to use CSS to control which portion of image to display is a great bonus.

allows you to cut a pile of image files in exactly the same way-- without losing data since it does not repack the file