LimeSurvey is an open source survey application – and this year appearing on the emerging Top 100 Tools for Learning 2010 list.

LimeSurvey allows users to quickly create intuitive, powerful, online
question-and-answer surveys that can work for tens to thousands of
participants without much effort.

The LiveSurvey Manual is focused on " how to install the application, administer the
installation, and support the many survey creators, administrators and
report generation users likely added"

However, a recent posting on MakeUseOf provides a very useful description of  how to create yourown hosted survey with LimeSurvey.

You can download LimeSurvey at

For other survey tools, take a look at my list in the Learning Tools Directory– Poll/survey tools are those with a checkmark in the P column