* 1. How many apps do you currently have on your Facebook account?

* 2. In a typical week, about how many songs or other music files do you download from the internet?

* 3. In a typical week, about how much money, in U.S. dollars, do you spend on songs or other music files you download from the internet?

* 4. Which type of apps do you currently have on your digital devices (computer, tablets, phones, etc.)? (Check all that apply)

* 5. In a typical day, which types of apps do you use on your digital devices (computer, tablets, phones, etc.) most often?

* 6. Which types of apps are most useful to you?

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