Choices abound for reading Usenet messages in Linux. Many email clients can deliver news. Several standalone clients are also around, including Knode/Kontact, Pan, and several text-based choices. Some require you to be online when accessing news, others permit offline reading. Of course, there's also gnus for Emacs.
Reading email and reading news are similar tasks: Read messages and respond, and perhaps save items for later use. For this reason, the easiest way to keep up may be to use a mail client that supports reading Usenet.
Many email clients do this, including some of the best known: Mozilla Mail/Thunderbird, Evolution, Sylpheed, mutt, and pine. Setting them up to read Usenet is usually just a matter of identifying the Usenet server (often news.ISPname.com) and including login information, if authentication is required.