The International Fleet Review will be on later this week.
They are making extensive use of social media, encouraging people to participate. The links to the social media tools are on their home page, and easy to find.
Looking at how this large event is appearing on social media, may give you some ideas for your next event. For example, you may not set up a special Pinterest account, but you may have a board dedicated to an event. Set up a group on Flickr (and make sure you have some images available, prefereably using Creative Commons licensing so they are easy for others to share and reuse.
Ellen and Philippa