Survey things

How about letting me know how you feel about my blog, and how I can make the blog better for you the visitors. I would like to have a survey on my blog and I must find a free online survey tool for this. It would be very interesting to hear what you guys have to say about my blog posts and pictures. I have a pretty big blog about my special interest that is model building. I love to build models and this has been a hobby of mine since I was a child. Now I would like to know what my visitors to that blog think about my models and it would be great with a voting system or something that let people vote on the model they like the best. Maybe other can show their models on my blog too. That would be great.