BBC News interviewed dozens of people who all enjoyed the great community spirit in London for the royal wedding.
Big events, as Robert Putnam mentions, help build communities. They bring together a large number of people for a common purpose. The challenge is that a single event wont maintain a community spirit. Communities need relationships. Relationships take time. Big events struggle to sustain a sense of community.
Big events (such as annual gatherings) have their purpose, they can kick-start communities and solidify online relationships. Most community managers, however, should work on smaller regular events. Regular events encourage regular interactions between members. Interactions build relationships. Relationships build communities.
Drop the big events for now and focus on scheduling regular live-chats, guest interviews, birthdays, launches and a variety of other such events.