OpenStreetMap

The <choose><option>so-called experts</option><option>so-called experts</option><option>so-called experts</option><option>so-called experts</option><option>so-called experts</option><option>so-called experts</option></choose> at Wikipedia have an article on much funnier than this one.
thumb|right|250px|How to obtain geodata: equip cat with GPS-tracker
OpenStreetMap(OSM) is a project exclusively run by nerds and hackers. Its declared goal is to put the geoinformation of all fire hydrants and their friends the trees on earth into a giant database. 
==How it works==
Since it is easier to make up plausible geolocations for fire hydrants if you have some other data as well, they also map streets, buildings and forests. Only if a contributing person is either too stupid or not creative enough to make stuff up he is allowed to use GPS and obtain actually correct information. The gathered geodata then is rendered into maps which are free to use but no one wants anyway.
===Cats===
The old way was to walk or use a [bicycle] when gathering data with a GPS-tracker. As of now, there are over 9000 cats which have been equipped with GPS devices which are being referred to as Catographers.
===Tags===
You can attach tags to geopositions, which should indicate something about what is there - like a fire hydrant. Or what you made up about that spot (like a non-existing fire hydrant). Since only nerds and hackers work with OSM they invent new tags all the time. As a rule of thumb a tag is only worth anything if it is used AT LEAST 9000 TIMES!!!
===Mapping Parties===
thumb|right|250px|A happy Map with some happy City with some happy fire hydrants
From time to time fellow mappers meet up near a fire hydrant to explore some unknown areas and gather new geodata. These gatherings are called mapping parties and sometimes they are just parties without mapping, sometimes they are mapping without party and sometimes they are neither nor.
==Object types==
All of OSM data are made out of "objects", which is fancy word for "ways and it's different evolutions".
===Ways or "lines"===
If you do them without using GPS from Area 51 with accuracy to 0.0000000000000000021 of Hammer Units you are officially going to get executed. Works always and everywhere.
===Polygons or "looped ways" ("looped lines")===
Same as ways, but looped
===Nodes or "dots"===
Same as ways, but if it was building site which is said to be illegal so it never was finished. It is known that entirety of OSM nodes are just fire hydrants. Everyone who doesn't believe in it, will see the same fate as people drawing ways without GPS from Area 51.
===GPS traces or "colorful lines"===
Only best of the best know about them, and only few of them use them. Nobody knows how to turn it on in editor but legends say it is simple but well hidden. Only people with Area 51 GPS are allowed to create and upload them.
==The situation by country==
===Great Britain===
Although the project started in Great Britain they are now too busy drinking tea so it has nearly come to a halt there.
===USA===
In the USA everyone who contributes to the project is considered a Terrorist and will be sent to Guantanamo Bay.
===Germany===
Since in Germany so many people were bored, unemployed or both, that the exact location of every fire hydrant is already known. Uncertain what to do now mappers started to build new hydrants and some even started to map other stuff. One of the emerging ideas was to locate all the places where you can buy sausages that are filmed by a surveillance camera. Since it is probable that this will be achieved in the near future as well some mappers are slowely starting to think about if there is anything useful one could do with maps.
===Greece===
No vandalism, no fire hydrants.. but there are cats.
==OFHM==
Actually it should be called OpenFireHydrantMap, but that since that sounds stupid and all good acronyms have exactly three letters it was called OSM. This name also has the benefit that it sounds as if it had something to do with streets - and thus be useful for anything.
==Vandalism==
Vandalism is a huge problem. Since everyone can change the data, it has become very accurate in many areas. Numerous "mappers" are upset, because other things than fire hydrants are being mapped and that made up hydrants are viciously removed. If you want to vandalize the original concept by adding actually valuable content, you can do that hereFeel free to vandalize - by adding actually valuable information like street names or numbers..
==Footnotes==
==See also== 
*Open source
*Catographer
Category:Geek
category:Over 9000
category:Cats
Category:Three Letters
Category:Things America Did Not Invent
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