Where's Willy?
From Wikipedia, the free encyclopedia
| Where's Willy? | |
|---|---|
| URL | http://www.whereswilly.com/ |
| Type of site | Money circulation tracker |
| Registration | Optional |
| Available language(s) | English/French |
| Created by | Hank Eskin |
| Launched | February 2001 |
| Current status | Active |
Where's Willy?, is a website that tracks Canadian paper money — most commonly five dollar bills, but also higher denominations. "Where's Willy" is free, supported by users who pay a fee for extra features. The name Willy refers to Sir Wilfrid Laurier - the first French Canadian Prime Minister whose portrait appears on the Canadian five dollar bill.
Where's Willy? is a currency tracking spin-off of Where's George, a site that tracks United States dollars.
The free site, established by Hank Eskin, a computer consultant in Brookline, Massachusetts, allows people to enter their local postal code and the serial and series of any Canadian denomination from $5 up to $100 they want to track. Once a bill is registered, the site reports the time between sightings, the distance travelled and any comments from the finders, and anyone who registered the bill earlier learns about it by e-mail and/or text messaging.
To increase the chance of having a bill reported, users write or stamp text on the bills encouraging bill finders to visit www.whereswilly.com and track the bill's travels.
Since Canada has replaced the one and two dollar bills with more durable coins, the $5 note is the smallest denomination tracked by Where's Willy.
In April 2003, USA Today named www.whereswilly.com one of its "Hot Sites".[1]
In 2005, the Montreal Mirror described the hobby as the most joy to be had with the five-dollar bill since the illegal defacing of Laurier with Spock ears.[2]
As of August 2007, Where's Willy? is tracking over 2 million bills totalling over 30 million dollars.[3]
Researchers studying pandemics have used currency tracking sites to plot human travel patterns, to find clues on how to combat the spread of diseases like SARS.[4]
[edit] Willy Index
The "Willy Index" is a method of rating users based on how many bills they've entered and also by how many total hits they've had. The formula is as follows:
![100\times\left[\sqrt{\ln({\rm bills\ entered})}+\ln({\rm hits}+1)\right]\times[1-({\rm days\ of\ inactivity}/100)]](../../../../math/b/6/2/b62e7d70be985d88ab3ffe9b53a5ae5e.png)
Because of the nature of square roots and natural logarithms, the higher a user's bills entered and hits are, the more of each are necessary to increase the score.
[edit] References
- ^ Web Guide Hot Sites, USA Today, April 4, 2003
- ^ $5 Alive, Montreal Mirror, August 25, 2005
- ^ Where's Willy Summary (English). Retrieved on 2007-08-13.
- ^ CBC News (25). Scientists trace dollar bills for clues to predict pandemics (English). Retrieved on 2007-08-13.
