Create a profile, let your friends come and ask you questions anonymously. Once you answer questions it will be shown on your public profile. You can become a user with only 2 clicks using Facebook Connect feature. Answering questions, asking your friends questions are so easy. If you use Facebook Connect feature, you can see your facebook friends with Pytajko profiles. You can promote your profile on facebook and tweeter.
Site is only in Polish language for now. Thinking of releasing an English version sometime soon.