11+web+based+editors+with+IDEs+to+code+directly+from+your+browser

11 web based editors with IDEs http://www.thesimplexdesign.com/2010/12/web-based-editor-ide.html

5 of the best online IDEs http://www.webdistortion.com/2011/04/05/online-code-editors/'

There's also codenvy