At Least I Think I Do
Facebook and ExperienceProject, I think, are two totally different types of social networks.
I joined FB so I could keep in touch with my friends, who I know I would lose contact with. I think I got it around the summer when I graduated from high school. I'm not really one to talk on the phone much and sending emails is fine, but people change email addresses without a warning. So FB was great for not losing my high school buddies.
Meanwhile EP is great for expressing myself and meeting new people who share my experiences. Here, I don't feel any pressure to not reveal my true feelings and thoughts, because a) I don't know anyone personally (yet :P ) and b) that's what we're supposed to do!
On FB not many of the people on my friend list know half of the experiences I added here. I'm not even sure how differently they'd view me if they knew.
I could never choose between EP and FB. They each have their purpose in my life, but EP just might be better for me.