You can find the latest updates and announcements on the community forum, in the Site Announcements board.
Opinions about using PA systems for announcements in residential areas will vary. Personally, I believe using the PA for non emergency announcements in residential areas is okay, especially since most announcements are made within the school and would not disturb the residents in the area.
Bulletin.
Presidential Emergency Board/American <---For A+ :)
There are many types of public announcements that are made every day. A few would include Public Service Announcements which are used mainly for educational purposes, General Public Announcements like those found in newspapers, and Emergency Public Announcements used often in weather warnings.
The Emergency Alert System (EAS) distributes emergency public safety information in the United States.
A (PA) system is important in buildings such as schools to read announcements or declare states of emergency.
4800 men on the ships
Long boards are actually not a list of information and announcements. The most popular usage of the word long board is used in reference to skate boards.
Echo
responsible for the installation,repair and maintenance of electrical equipments on board the ships.
Colonies are not on ships people are. When people arrive they create colonies.