Globe is community

When i was googleing word "community" first source was wikipedia. I know that Wikipedia is not academic source and is not reliable, however I would like to quote the explanation of community:

“In biological terms, a community is a group of interacting organisms sharing an environment. The word community is derived from the Latin communitas (meaning the same), which is in turn derived from communis, which means "common, public, shared by all or many". Communis comes from a combination of the Latin prefix com- (which means "together") and the word munis (which has to do with performing services).”

So if we accept this definition then we can say that all people belong to one big community, because they all sharing environment – planet Earth (see drawing below). During our lecture in Norköping interesting question arise. If we all belong to one big community then what is all small groups and what is the difference among many groups. At this point I would like to reffer to Wikipedia again:
“In human

communities, intent, belief, resources, preferences, needs, risks and a number of other conditions may be present and common, affecting the identity of the participants and their degree of cohesiveness. Traditionally in socology, a "community" has been defined as a group of interacting people living in a common location. However, the definition of the word "community" has evolved to mean individuals who share characteristics, regardless of their location or degree of interaction.”

So after this explanation we can draw a theoretical model of community:

However I would like to present also Mark Comerford model:

If I would like to define the concept of community now… I would say that the most important factor is passion and interests. It is hard to be a member of community which is not interesting for you. Place and environment is not that big problem nowadays, however you need at least few other persons to start build up a community.
We were supposed to discuss what type of community is more qualitative – open vs. gated, free vs. paid, qualitative vs. quantitative etc. Honestly I don’t know what is better. I think that all depends on reason behind, the motivation, the idea of community. And I think that one type doesn’t exclude other and form of community can change by time. For example in the beginning it is opened for everyone, but later when certain amount of people is reached just invited persons are accepted. Or some parts, services of community is free, but some are paid. I really don’t know answer but I believe that most communities have many layers and members of community as well as creators are the ones who decide the mode of community.