Citation Machine is a handy tool to share with students.
Students load their content 
to the program, and Citation Machine helps them create citations, provide grammar suggestions, and detect unintentional plagiarism.
Managing citations and ensuring integrity of writing
Use Hypothesis to hold discussions, read socially, organize your research, and take personal notes.
Trello is a tool allowing users to organize and manage almost anything Kanban-style with the use of a board, lists, and cards (think of it like a visual/interactive file drawer organization system). For education purposes, users have the ability to collaborate, share documents seamlessly, assign steps in a process with due dates attached and see student progress in real time.
Zotero is a free citation management software that allows the user to collect, organize, cite, and share research.
Managing citations, Producing bibliographies, Organizing research, Producing citation