javascript版:
/demo/kele/d.html
jquery版:
http://odyniec.net/projects/imgareaselect/
http://ui.jquery.com/repository/real-world/image-cropper/
jquery版2:
http://www.cssrain.cn/demo/pvcropper.rar
jQuery版3：
演示：http://odyniec.net/projects/imgareaselect/examples.php
JS下載：http://plugins.jquery.com/files/imgareaselect-0.6.2.zip
http://dl.getdropbox.com/u/342773/javascript%E6%88%AA%E5%9B%BE_imgAreaSelect_demo.rar
介紹：http://www.biuuu.com/?p=189
Asp.net：
http://www.mikesdotnetting.com/Article.aspx?ArticleID=95
PHP:
http://tools.uvumi.com/crop.html