This site defines what it does in a couple of choice words: “Search for tweets from just your friends”. That is the exact truth of it.
You might wonder what good is that for, and the answer is not that hard to figure out – it will let you tone down the noise that is inherent to Twitter, a noise that actually defies the roar of a plane’s engine when you are standing just two feet apart. If that seems like an exaggeration, just bear in mind the recent figures that prove there are more tweets than people around. And we know perfectly well that these tweets are not something that could put Oscar Wilde in his place. Quite the opposite, in fact.
As such, this (free) tool is a valuable one. You can use it to have access to each and every single thing that you friends have tweeted out from a centralized spot, and place everything on an interactive map. And you don’t even have to reload the page to view new tweets. In that sense, the website is something akin to a window into any twitterer’s universe, and a window that can be as open or closed as he wishes.
Flocking.me In Their Own Words
“Search tweets from just your friends.”
Why Flocking.me It Might Be A Killer
It is a good way of minimizing the noise in Twitter.
Some Questions About Flocking.me
How can this service become more widespread? In which direction should it be headed now? 
