Drupal Decisions Module
Decisions is a replacement for poll.module and provides advanced voting systems and decision-making tools. It aims to enable groups to take decisions online in a manner that replicates and augments what is possible in face-to-face meeting.
However, the advpoll has seen much more development over the last year and is currently recommended over this module.
You can use the Decisions modules if you are using the Drupal content management system to power your website.