If you are looking for simplest survey through your website then the best option is to conduct a poll. Polls can be very useful features at times, like for example you have written an article on Operating systems. You might have written briefly about different ones which is making it big at market. Now you might want to know what the user’s response is. Or what are user’s choices. That’s when conducting a simple poll would help you. With that you can know what really user’s like. Polldaddy is such a service. Polldaddy is service from Automatic (Automatic the WordPress.com fame). Once you have registered you can create simple polls which you can blend perfectly in websites or blogs. The most brilliant features of Polldaddy includes perfect blend with your website, blog or even Facebook (other social networks). You have option in selecting multiple skins and also you can code yourself in CSS so that you can embed in website however you want. Other features also include flexible results, flexible configuration, unlimited polls and multiple language support.
You have 3 basic account registration options but something most favorable for all is the free account. Also you have Polldaddy Pro (with multiple option, no links back to Polldaddy and with a price of $200/year), and Polldaddy Corporate same as above with more flexible options with a price of $899/year).
You can read more: Polldaddy Homepage.