I had felt an interestingness when I used the seesmic.
I had kept thinking that it is really interesting because its service is cool.
But recently, I found that it might be not truth.

I have tried plurk.com since yesterday.
It seems to have an interestingness same to what I had felt from seesmic.

And I found the interestingness comes from not its own uniqueness nor good design but from its users.
New community site is a meetup place for early adoptors.

They usually add me as a friend even if they don't know about me.
And they speak to me friendly.
These are all good enough user experience of which I think this service is nice.