A system or component that allows other components (subscribers) to receive notifications of something, such as an event.
One who publishes, especially books.
One that pays all or part of the cost of an event, a publication, or a media program, usually in exchange for advertising time.
A person or organisation with some sort of responsibility for another person or organisation, especially where the responsibility has a religious, legal, or financial aspect.
A senior member of a twelve step or similar program assigned to a guide a new initiate and form a partnership with him.
To be a sponsor for.