From EZ-Flash Wiki
The term "the scene" as far as this article/wiki is concerned generally refers to the group(s) of people who partake in running of code be it homebrew (code written by people other than official developers) or copies of commercial code known as ROMS or ISO's normally via flash carts, it also deals the modification of consoles and also includes emulation of consoles.
Some consider it a façade for piracy and depending on who's definition you use (some people define "the scene" as the groups of people responsible for distribution of rom images) that could well be the case, most however define the scene as in the definition above.
It is generally centered around news websites which deal with things that happen that come under the collective interest of "the scene" as well as forum sites and IRC channels.
There is no offical language of "the scene" with numerous sites and channels having different standard languages:
A brief list and by absolutely no means definitive of general "scene" sites:
The sites above either provide news on roms releases and may also assign them numbers although these numbers can and do vary between the sites, they may also provide news on new emulators and code and tricks released as well as more general news like the shipping of new iterations of consoles. Many house/are forums where people can go and post questions and news of things.