How to conduct surveys using facebook? More and more often I read in papers, that an online survey has been conducted through Facebook. What I have yet to understand is how this can best be done.
I understand that Facebook allows the creation of a survey app that allows surveys to be embedded in fan pages or timelines.
Thus, I have many little questions:


How and where do the existing Facebook survey apps (like https://de-de.facebook.com/simple.surveys) store their data? How does this comply with scientific privacy and data security concerns?
Which apps are best, and why?
I would like to run the actual survey on my own website. Is it possible to embed an external website in a Facebook app?
How can I implement a survey that does not need the test subject to allow the app access to profile data?
Since there is no way to advertise a survey on Facebook, except by having someone use it and let his friends know that he uses it, how do you, who have conducted surveys through Facebook, find a large enough and random enough sample? Or: How do you advertise your survey?


My overall question is

Regardless of the little questions above, I'm interested in:


What is an effective way to conduct surveys using Facebook?
Are there any existing tutorials that describe best practice?
This is just a few thoughts.

I agree with @adb that an obvious way to use facebook for conducting surveys is just to provide a link to an external website that runs the survey.

There is an interesting article by Tan and colleagues where they talk about using paid advertisements to get targeted participants on Facebook.  I thought the following statistics were interesting in highlighting the sheer scale required in order to convert an ad into completed surveys:  1.1 million ad impressions resulted in 280 clicks on the advertisement of which 59 responded to the survey of which 39 completed the survey.

References


Tan, H., Forgasz, H., Leder, G., &amp; McLeod, A. SURVEY RECRUITMENT USING FACEBOOK: THREE STUDIES. FULL TEXT