Want to be a social networking site like this. Ask for advice

Website content. Probably conceived.

1, picture, video sharing
2, friends interaction, users can simply make their own audio, video, flash files and other multimedia, (a bit like the feeling of graffiti, but can be equipped with audio) upload sharing
3, other friends can modify the multimedia files shared by friends

Problem
1, do you have such a website now? Can be used to refer to the next.
2, technically, to provide users themselves to achieve their own multimedia (above 2 of the function), this is feasible? There are no tools or products to refer to.
3, and there is this idea of mine to be constructive? I hope you will give us some advice. What do you mean? Welcome advice ...

Reply to discussion (solution)

Isn't there a lot of off-the-shelf SNS? Can you find a set on it?

Isn't there a lot of off-the-shelf SNS? Can you find a set on it?

The point is I want to implement the 2nd function.

You this is similar to Ali mother homemade Flash function

You this is similar to Ali mother homemade Flash function

Oh... I just want to get this answer. Oh, thank you. I'll go and see Mother Ali.

Weekend these days to see the simulation of life, feeling very difficult, I just one person to do. Cried out. There is no like-minded pot friends. To communicate with each other.

Video...... I didn't get a crowd.

Weekend these days to see the simulation of life, feeling very difficult, I just one person to do. Cried out. There is no like-minded pot friends. To communicate with each other.

You're going to do a mock life alone? ...... Worry about your life ...

Weekend these days to see the simulation of life, feeling very difficult, I just one person to do. Cried out. There is no like-minded pot friends. To communicate with each other.

You're going to do a mock life alone? ...... Worry about your life ...

I want to do a high-end domineering. The king of the color.

You big God, know QQ custom avatar that East is what to do with? How do you do that? There are no examples to refer to:

Would you look at Discuz?? The program of the friend?

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