My Social Site Usage
As you all know, I love metric. Meaningful data always provides useful information. For usage of social sites, FriendFeed has the best position to provide some meaningful stats. After it has been aggregating my updates for a month or so, it shows I use blog the most (because of Lifehack and this blog), then Twitter, and Google Reader.
My Usage:
What my friends use:
Yes, twitter beats all other social sites within my social graph, hands down. It is getting extremely popular, and also its user contribution is cheaper than other social sites — It only costs 140 chars.
BTW, add me to your friendfeed.