Finding the Twitter elite in any city (via keithhopper.com)

Now this is a cool and very useful tool: Finding Twitterstars | keithhopper.com. So says Keith:

"Finding and connecting with local social media 'superstars' can be a valuable short-cut for anyone trying to ramp up quickly in online social environments. These enthusiasts are knowledgeable about social media tools, are highly-connected, and understand well how to succeed in the online social environment. But how do you find the local social media superstars? Today, many of these individuals use  Twitter. The "Local Twitterstars" mini-application below takes any US geographic search area that you provide and returns a feed of the top five most followed individuals on Twitter who have been recently active in the region..."

I tried it and it works great for non-U.S. too! Latest update from Keith is here  Original Yahoo Pipe here (thanks @bentrem)