Social Networks++ & Cloud++ = Social/Pro. CLOUD

Well, it is so long time that I'm using social networks, the 1st one was Orkut four years ago and a year ago I started using Facebook. I don't want compare them, my subject is something else, but as a personal opinion Facebook is really great invention as everybody knows it.
It's about three days that I've felt in a large bunch of these networks and my huge interest to join them and test them.
I tested about 5 of them in just one day. The great things here are the APIs which connect all of them together, even your Yahoo!, Google, AOL and etc. This is why I inserted '++' in the Title.

You know, this is the Cloud. A social cloud which everybody can use in his own method, Social or Professional.

Cloud or Unite ??

Mmmmm....

3 Weeks ago one of my teachers, Mr.Bahrepour, told me about Unite. A new technology which Opera has brought it on. Then my curiosity started.  :D

As I read in Opera FAQ this technology shakes up the old client-server computing model of the Web.

In Unite each computer become a server and also the client too. There, you can share anything that you want such as photos, notes, videos, applications and streaming MP3s and chatting or managing a conference too. It means that there is no need of uploading anything in an outer server and wasting the time to do so.

But the weakness here is that the server computer should be on and connected to the Internet. For example, I've shared one of my photos, as that's in my system's HDD, if somebody wanna see the photo, my computer has to be on.

I think Cloud is better again.

What do you Think ???