I wouldn't have received significant numbers about usage. In surveys you don't want to conflate questions, and these questions are asked independently to different people. It's hard to formulate a question about usage of Facebook for the general internet population and get a significant number of useful responses.
Edit: I learned that the tool lets you ask Screener questions that qualify people to answer subsequent questions. I'll try this with a future survey.
Edit: I learned that the tool lets you ask Screener questions that qualify people to answer subsequent questions. I'll try this with a future survey.