Informations concerning polling software used free of charge, as stated by the vendor

• QuestionPro Online Survey Software employs an easy to use wizard interface to author and deploy web based and email surveys. A comprehensive suite of analytical tools, ranging from simple frequency analysis to Conjoint and TURF analysis is also provided for data analysis.
  QuestionPro Online Surveys licenses its software free for students and faculty members of universities.
  More Information about Free QuestionPro Licenses... 
  
   
• Free Web Polls MicroPoll Web Poll Software provides seamless ondemand Web Polls for your blog/website. Web Poll Script as well as Web Poll HTML code is provided. Setting up Web Polls is as easy as copy and paste.