Codewalkers.com has a new post today about their latest tutorial posted on their site - Adding a Poll to Your Website.

One of the easiest ways to turn a static web page into a dynamic site is to add a poll. A poll can tell you what visitors think about your site or about the burning questions of the day. A good poll can keep people returning to your site to check the latest totals. Internet polls also have their drawbacks. A determined user can skew the results by voting more than once.

In this tutorial I will show how to make a simple poll using PHP and MySQL, and discuss possibilities for expanding it. Then I will discuss the problem of multiple votes by a user, the methods poll makers have used to try to prevent this, and the limitations of each method.

It's a nice little tutorial, and it's nice that it includes a section on poll accuracy as part of it. They make a point to state that, without identifing the user in one form or fasion, there's just no good way to keep the results from being skewed...