As of 10/20/2014, Princeton students and staff have created 1,420 Google Forms online.
Google Forms has improved a lot over the past two years.
Last year, the ability to add photos and videos right in forms.
Today we see Google Form Add-ons, many of which focus specifically on the feedback from teachers on what they need out of a form as an assessment & productivity tool.
From Google Forms , select the Add-ons menu
For example, "The Choice Eliminator Add-on will eliminate an option from a multiple choice, list or checkbox type of question. Great for signing up for time slots or having students choose topics without doubling up."
Link to the Choice Eliminator Add-on
To create a Google Form, go to Google Drive, click Create (or New), Form.