Never mind keeping track of how many gold medals Bermuda, Cayman Islands and Monaco rack up during the Winter Olympics; the real nerds are watching to see exactly how many tweets are being pushed out per minute from a smattering of cities around the world. CASA's Tweet-O-Meter has been running on a webpage for awhile now, but frankly, the novelty tends to wear quickly. These, however, are far more tempting to the retinas. What you're looking at above are a few analog Tweet-O-Meters, which do exactly what you think they do: showcase the amount of tweets that are leaving New York, London and Paris at any given time by moving a needle within a conventional gauge. Head on past the break for a video, and be sure to express your reaction on your favorite up-and-coming social networking site.