You'll want to make sure that your mailbox can handle such a large file. The more specific you can be in your choice of word, the better. Searching the Listserv can be helpful if you intend to use these lists with your class. Some teachers elicit areas of interest from their students, such as different sports, pets, hobbies, computers, celebrities, writers, etc, and then look for a list which discusses one of their interests in the target language. The teacher can then have the student subscribe to the list so he or she can practice reading and writing on a topic of personal interest.
Students can report later on the list's discussions.
This is a good way to offer supplemental material from outside the text and perhaps to encourage students' interest in reading and writing about topics of interest to them.