AJAX Controls

http://www.c-sharpcorner.com/UploadFile/das_purnima/ResizableTextBox09092008070758AM/ResizableTextBox.aspx
http://www.dotnetheaven.com/UploadFile/rahul4_saxena/AJAXAccordionControl09152008033106AM/AJAXAccordionControl.aspx

http://www.c-sharpcorner.com/UploadFile/mahesh/WPFRichTextBox09072008194855PM/WPFRichTextBox.aspx