Wufoo is an online tool to create forms. As a fan of Jotform and a user of Hubspot (which already has a form creation tool built in), it is tough to get my attention. Wufoo is very simple to learn and the form you see below was set up in under 5 minutes.
The tools of a successful entrepreneur must be intuitive, easy to learn, simple to apply and have great support. Wufoo seems to have all of this and more.