Some mailing lists maintain archives; most are open only to list subscribers, although some are public. To read the archives of a list, go to:
Replace "listname" with the exact name of the list. Under the first heading you'll see a link to the list's archives. If the archives are available only to subscribers, type your email address and list password into the boxes and click the "Let Me In" button.
For each month, you can see the messages by thread (that is, a message and all the replies to it), by subject (alphabetically by subject line), by author (sender), or by date. You can also download a file of all the messages.