Jotform - Form Builder

"There was a time once when creating web forms was a big pain for webmasters. Then came JotForm, first web based WYSIWYG form builder, and turned into a joy. "

http://www.jotform.com/

Wufoo - Free HTML Form Builder

"Wufoo is the easiest way to collect information online. Our innovative HTML form builder helps anyone create beautiful forms, online surveys and invitations without writing a single line of code."

http://wufoo.com/