SurveyMonkey is online survey software that helps you to create and run professional online surveys, quizzes, polls.

An open source PB voting tool, featuring knapsack voting where you divide the budget between projects you want to support

Google Forms has a survey administration software included as part of the free, web-based Google Docs Editors suite offered by Google.

An open source voting tool. It allows several different ways of voting, including ‘knapsack’ voting, where you split the fund between different projects to vote.