The terms "groundhopping" and "groundhopper" can not (yet) be found in any dictionary, yet there are hundreds of groundhoppers around, mostly in Germany. The word combines the terms "ground" and "hopping" and refers to the visiting of different sports grounds -- usually, though not exclusively, football grounds (for a German description, see Wikipedia).
Whereas normal football fans tend to visit only home games of their favorite team, particularly when they live closeby, and more fanatical fans also attend the away games of their team, the groundhopper aims to visit as many different grounds and teams as possible. Moreover, unlike the normal fan, who generally prefers to visit the big teams in football (e.g. Bayern München, Manchester United, Real Madrid), the groundhopper goes for the exotic (e.g. Avenir Beggen, Ozeta Dukla Trencin, Selangor PKNS) and the tiny, such as the third team of the city (e.g. Partick Thistle, Royale Union Sint-Gilloise, Spvgg Unterhaching).
While groundhopping is largely a non-organized activity, by individuals and small groups, there exist a few organizations of groundhoppers. The most famous is the German Vereinigung der Groundhopper Deutschlands (V.d.G.D.): it's website is one of the major sources of information on clubs, leagues, and stadiums in the world. For other groundhopper websites, see the links on the right.
Comments are always highly appreciated. You can post them either here on the site or you can email me at grondhopper[at]hotmail.com.