Google forms is a service of Google Apps that is available for you to use in your classrooms with your students or parents.  A Google form is a quick survey tool.  You develop the questions and then put the survey link or embedded code on your blog, wikispace, or LMS for students or parents to access.  You may already survey your students/parents on their interests, email addresses, or topics they are interested in studying.  In addition, you could consider using Google Forms for a quick formative assessment, check for understanding, or "ticket out the door". If you move your paper survey over to a Google Form, all the responses are noted for you in a nice Google Spreadsheet that you can easily sort and insert graphs to display the data.

Quick sheet for Google Forms: