Voting is a simple way for community members to express their opinion on something.
Voting up/down Edit
Many community software platforms have a feature which lets you "vote up" or "vote down" an item that is posted to the community. This is often indicated by thumbs up/thumbs down icons, or by arrows. Voting increments (or decrements) a counter which can be used to display how well-liked an item is.
Examples of sites that use this include:
Some examples of software you could use to bring voting to your community.
- IdeaTorrent - Drupal based "open innovation software": it lets people submit their ideas, brainstorm them, and vote on them.