Harvard affiliates can create online surveys through Qualtrics.
Qualtrics is a web-based survey software that allows you to easily create surveys, collect and store data, and produce reports. It includes an easy-to-use survey editor, templates and sample surveys to customize for your use, integrated graphics and statistical tools, and the ability to download data into a variety of formats.
The Harvard Library User Research Center has additional information on constructing surveys and occasionally hosts workshops on Qualtrics.