Are you tired of relying on an external site to do your surveys? Look more professional and keep your own data using tikiwiki's various survey tools.
Polls are a simple one question "straw vote" they can be displayed either within pages or in side modules.
Surveys can be viewed as "extended" polls with multiple questions of various types.
Quizzes are timed surveys that can be used for training and e-learning.
Trackers are a fully customizable "forms" kind of feature.
Which do you want to use? For some simple surveys, a poll may be enough. But when you want to be more precise about your users' opinions you need to create a survey. A survey is a collection of several questions. Statistics based on the answers are stored and may be viewed later.