Slrn is the supported newsreader on Alcor. It is very easy to use, and there is online help within the program itself. Read Introduction to Usenet News and the slrn Newsreader, based on a similar "trn" document produced at the Presbyterian College in South Carolina, before asking any questions. A printed copy of it (with a fancy cover and all) is available for a modest fee at the Concordia Bookstores.
IITS and CUG have prepared a one-page "crash introduction" handout for slrn. You can get it at the Service Areas (H 925 or CC 207), and it is also available online.
For yet more information, see: