Contact Forms for WordPress.
http://www.gravityforms.com/
Widgets · Feedback Forms and Surveys
Get access to data on 1,376,710 websites that are Gravity Forms Customers. We know of 515,281 live websites using Gravity Forms and an additional 861,429 sites that used Gravity Forms historically and 343,469 websites in the United States.
Get a list of 1,376,710 websites using Gravity Forms which includes location information, hosting data, contact details, 515,281 currently live websites and an additional 563,405 domains that redirect to sites in this list. 861,429 sites that used this technology previously and 343,469 websites in the United States currently using Gravity Forms.