verveJEdit
VerveJEdit is an online WYSIWYG HTML editor, written as a client-side java applet. It is ideal for inclusion in custom content management applications, online forums, or any similar application where a consistent, easy to use user interface is required across platforms. VerveJEdit has been extensively tested under Windows, Mac OS X, Linux, and Solaris. It will work on any platform that supports java. VerveJEdit requires the java plugin version 1.4 or better.