http://www.surveymonkey.com/http://polldaddy.com/http://www.polleverywhere.comhttp://www.kwiksurveys.com/http://www.response-o-matic.com/index.htmlhttp://wiffiti.com/Here are nine tools that you can use to put a survey or poll on your class blog.  From: 
http://www.freetech4teachers.com/2010/07/nine-survey-tools-for-teachers-and.html 
    Using Yarp you can create a simple one question  survey or one line event invitation. To create a Yarp survey  select "survey" on the homepage,  type a question, then select your  answer format. All answer formats  present only two options along the  lines of "true or false" or "yes or  no." Yarp invitations use the same format  styles as Yarp surveys.
Using Yarp you can create a simple one question  survey or one line event invitation. To create a Yarp survey  select "survey" on the homepage,  type a question, then select your  answer format. All answer formats  present only two options along the  lines of "true or false" or "yes or  no." Yarp invitations use the same format  styles as Yarp surveys.
  
    Vorbeo is a free service for creating  polls for your blog or website. To use Vorbeo   just type your question, enter your answer choices, select a  background  color, and specify the width of your polling widget. Then  copy the  embed code provided by Vorbeo and paste  it into the html editor of your blog or website.
Vorbeo is a free service for creating  polls for your blog or website. To use Vorbeo   just type your question, enter your answer choices, select a  background  color, and specify the width of your polling widget. Then  copy the  embed code provided by Vorbeo and paste  it into the html editor of your blog or website.
  
    Urtak  is a free and simple polling service  that can be used on any blog or  website. The polls you create can have  multiple questions, but they  must be "yes or no" questions. But Urtak  isn't that limited because visitors  to your poll also have the option  of writing in their own questions. You can get started using Urtak  in  seconds by registering with your Twitter or Facebook account. You  can  also use your email address to create an account with Urtak. Urtak  polls can be embedded into your blog  or you can direct people to your  poll by sharing the unique url Urtak  assigns to your poll.
Urtak  is a free and simple polling service  that can be used on any blog or  website. The polls you create can have  multiple questions, but they  must be "yes or no" questions. But Urtak  isn't that limited because visitors  to your poll also have the option  of writing in their own questions. You can get started using Urtak  in  seconds by registering with your Twitter or Facebook account. You  can  also use your email address to create an account with Urtak. Urtak  polls can be embedded into your blog  or you can direct people to your  poll by sharing the unique url Urtak  assigns to your poll.
 
    Buzz Dash  is a free polling service  that allows anyone to create a poll to use  on any blog or website. There  are a lot of survey and polling widgets  that you can use on your blog  (in fact, Blogger has one built-in), but  what I like about Buzz Dash is  that your poll results  instantly update whenever someone votes. The  update happens without the  need to refresh your page in order to see  the new poll results.
Buzz Dash  is a free polling service  that allows anyone to create a poll to use  on any blog or website. There  are a lot of survey and polling widgets  that you can use on your blog  (in fact, Blogger has one built-in), but  what I like about Buzz Dash is  that your poll results  instantly update whenever someone votes. The  update happens without the  need to refresh your page in order to see  the new poll results.
 
    Obsurvey gives you the flexibility  to create multiple choice surveys or open-ended surveys. Setting up a  survey with Obsurvey  is an easy  process. To set up a survey simply select your question  format and then  edit the questions and answer choices using the text  editor. The video here shows you how to set-up Obsurvey.
Obsurvey gives you the flexibility  to create multiple choice surveys or open-ended surveys. Setting up a  survey with Obsurvey  is an easy  process. To set up a survey simply select your question  format and then  edit the questions and answer choices using the text  editor. The video here shows you how to set-up Obsurvey.
 
    Fluid Surveys  is a good tool for  quickly creating surveys that offer multiple  response formats. Many free  survey programs only allow one type of  response format, multiple choice  or text. Fluid Surveys  allows  you to combine both formats in one survey. The drag and drop  interface  is so easy to use that you can build a survey in less than a  minute.  Watch the video here to see how easy it is to use Fluid Surveys.
Fluid Surveys  is a good tool for  quickly creating surveys that offer multiple  response formats. Many free  survey programs only allow one type of  response format, multiple choice  or text. Fluid Surveys  allows  you to combine both formats in one survey. The drag and drop  interface  is so easy to use that you can build a survey in less than a  minute.  Watch the video here to see how easy it is to use Fluid Surveys.
 
    Stellar Survey offers  free  surveys that teachers and school administrators can use to get  feedback  about courses and instructors. Users can select from a  predefined  template and questions or create a survey from scratch. The  free, basic  account only allows 50 responses per survey so it is not  ideal for large  classes, but for most teachers 50 responses will  adequate.
Stellar Survey offers  free  surveys that teachers and school administrators can use to get  feedback  about courses and instructors. Users can select from a  predefined  template and questions or create a survey from scratch. The  free, basic  account only allows 50 responses per survey so it is not  ideal for large  classes, but for most teachers 50 responses will  adequate.
No list of survey tools would be complete without mentioning the following two very popular services.
 Polldaddy is one of the most recognized platforms for online polling. The free Polldaddy plan allows you to create polls or surveys containing up to ten questions. Poll/ survey results are displayed in real-time.
Polldaddy is one of the most recognized platforms for online polling. The free Polldaddy plan allows you to create polls or surveys containing up to ten questions. Poll/ survey results are displayed in real-time.
 Poll Everywhere
Poll Everywhere  is a poll/ survey service that allows you to collect responses via text  messaging. Post your question(s) on your unique Poll Everywhere survey  and the audience can voice their opinion(s) using their cell phones.  Survey results are available instantly. The free plan allows you to  collect responses from up to thirty respondents.