There are two primary benefits. One, the copyright is then a matter of public record thus making licensing information more easily available. Two, registration is necessary if you wish to bring a lawsuit for infringement in the US.
To copyright your educational materials, you can simply create them and they are automatically protected under copyright law. You can also register your materials with the U.S. Copyright Office for added protection and legal benefits.
Your country's copyright office.
yes
yes
Registration is not required for protection. If you wish to register anyway, you may do so through Access Copyright at the link below.
Works are protected by copyright as soon as they are "fixed." If you wish to register a work with the copyright office, you may do so.
It depends what country you are in.
No, but you can register it as a trademark.
Registering a Copyright OnlineYes, you can. Go to this website: http://www.copyright.gov/forms/ which is the Electronic Copyright Office.
To copyright quotes, you can include them in a larger work that you register for copyright protection. This will protect the quotes as part of the overall work. Additionally, you can also register individual quotes with the U.S. Copyright Office, but keep in mind that the quote must be original and meet the requirements for copyright protection.
You cannot copyright a business name, but you can register it as a trademark.
Works are automatically protected once they are fixed, but you can register your art with the copyright office if you wish.