I want to introduce trendocean.com to you. It is a multiple choice based question and answer site with social parts. It is a social network where you can see who are popular/marginal, ask and answer questions, follow people and keep in touch with your friends.
Main difference of this question and answer site from others is it is based on multiple choice questions. Since it is multiple choice you do not need to read long answers and you can access statistical information about your choice. Currently they only provide distribution of answers for each choice but in the feature they will provide distribution of choices based on gender, city, country, education and age.
Technologically it uses Glassfish and Apache Cassandra at the backend and uses html, javascript and jquery for user interface. It also provides a REST based API for other clients. We really appreciate your feedback at info@trendocean.com.