On this episode of WP-Tonic, Jonathan and Bill go over their second level picks for WordPress forms plugins.
Below are the WordPress plugins for episode 019:
Contact Form 7: http://contactform7.com/docs
Google Docs: http://www.google.com/forms/about/
Formstack: https://www.formstack.com/ (this may be the best value, University of Reno uses this site.
Mashable Article: http://mashable.com/2012/02/16/web-form-builders/