These websites are Community specific where a Community can publish  about  their Community person for a meet,function and other ritual events.These are strictly for a Community or open to all.Later  Communities  websites are made  for non regions category  like social gathering,social causes,charity , awareness and more.These include event history,ticket reservation for meets and more.Later Forum ,Sharing Websites are the subcategory under this website.
This has been now more popular in social media where on can create Community page and manage all features like event announcement , interested to participate in event and more.These comes with free photo sharing,video sharing and more.