For one of my computer classes, I have to do a project on social networking sites. I need to gather some information from other people about which sites they use, whether or not they like them, etc. I was hoping some people could take the time to answer 7 quick questions. It would be very appreciated!

(If you don't want to use your real name, you can put anonymous.)
Name:
Age:
Gender:
1. What social networking sites do you use? Which do you use the most? (Social networking sites include: Facebook, Twitter, YouTube, any forums, etc.)
2. Why do you use social networking sites?
3. Do you enjoy using them? Why?
4. Is there anything you dislike about them? Why?
5. Have you ever stopped using any social networking site? If so, which and why?
6. How secure do you feel using social networking sites? Do you have any privacy concerns?
7. If you could change anything about your most used social networking site, what would it be? Please be as descriptive as possible.
Also, feel free to discuss any social networking sites. Any extra information would be very nice. Thank you in advance!