JotForm JotForm is a web based WYSIWYG AJAXy form builder. Its drag and drop user interface makes form building easy. Using JotForm, you can create forms, integrate them to your site and collect submissions from your visitors. Examples include...

Contact Form
Blog Contact/Survey
Event Calendar
Document Uploader
Satisfaction Survey
Time Sheet
Job Application Form
RSVP for a Party or Wedding
Bug Tracker
Reservation Form