Yes, there's a few....

microsoft.public.win98
microsoft.public.win98.apps
microsoft.public.win98.comm
microsoft.public.win98.comm.dun
microsoft.public.win98.comm.modem
microsoft.public.win98.disks
microsoft.public.win98.disks.general
microsoft.public.win98.display
microsoft.public.win98.display.general
microsoft.public.win98.display.multi_monitor
microsoft.public.win98.fat32
microsoft.public.win98.gen_discussion
microsoft.public.win98.general
microsoft.public.win98.general.discussion
microsoft.public.win98.internet
microsoft.public.win98.internet.active_desktop
microsoft.public.win98.internet.browser
microsoft.public.win98.internet.netmeeting
microsoft.public.win98.internet.outlookexpress
microsoft.public.win98.internet.windows_update
microsoft.public.win98.msinfo32
microsoft.public.win98.multimedia
microsoft.public.win98.multimedia.directx5
microsoft.public.win98.networking
microsoft.public.win98.performance
microsoft.public.win98.pnp
microsoft.public.win98.power_mgmt
microsoft.public.win98.pptp
microsoft.public.win98.pre-release
microsoft.public.win98.printing
microsoft.public.win98.pws_4
microsoft.public.win98.scanreg
microsoft.public.win98.setup
microsoft.public.win98.setup.win31
microsoft.public.win98.shell
microsoft.public.win98.sys_file_check
microsoft.public.win98.taskscheduler
microsoft.public.win98.webtv

Your ISP probably has them all available on their servers.

Or, you can get to them via Google (that's where I got the above list)...
http://groups.google.ca/groups?hl=en&group=microsoft.public.win98

Or, if you have NO other way, through Microsoft's horrible Web interface...
http://support.microsoft.com/newsgroups/default.aspx
(Click Windows in the left box, then Windows 98)