is a basic Word processor that allows documents to be stored and shared: is very powerful, able to store large volumes of text material in well ordered folders.
Sites is a quite respectable basic web-authoring tool, [this site!] it is very easy to manage. Could provide a little site for an individual course! It is very easy to use: like a word-processor. A support site could be very useful for some tutors.
a good Spreadsheet - very good for lists and records.