when you complete your profile, you can use quick search feature to find interesting people to have a talk.
Both free members and gold membership can create blog and topic, you can post comments in different categories. When someone upload photos or post a comment, you can view thier activies in time.
Of course, you can also remove someone from the favories, if you don't want to contact them any more.
You can change email address, username, zip and so on, you just need to go to your account setting page, you can make changes.
In order to protect your privacy, the website need you to fill in your password.
About forty research projects of state-level and local government-level are being carried out now.