John's Handy List of Pointers

Mathematics Pointers

The Atlas of Lie Groups [wiki]
Fastlane at NSF [requires cookies]
The AMS: journals or The Whole Enchilada
MathSciNet [via proxy] and the arXiv
Combined Membership List (search) and a Mathematical Genealogy page
Journals:
The On-Line Encyclopedia of Integer Sequences
The Home Page for GAP

UM Math Department Resources

People Pages and the Intranet
Wolverine Access, ResponsiBlue, and Canvas
Descriptions of our Courses and Undergraduate and Graduate Programs
The Combinatorics Seminar, all seminars & colloquia [Bulletin]

University of Michigan Resources

The Google portal and M Community (gag)
The Academic Calendar and LSA Course Guide
Mirlyn, on-line journals, and theses in Deep Blue
The Reference Shelf, including the OED (restricted to umich.edu)
The Michigan Daily and the University Record.
ITS, the ITS login service, the SCS, and lazy printing.

Computing Resources

Linux Weekly News, TidBITS, and Slashdot
The UM Tech Shop and Think Penguin
RHEL manuals, the Arch X1 Carbon Gen6 Wiki, and the ThinkPad Wiki
Rocky Linux: [documentation, forum, mirrors, repos, errata]
Fedora [search, archives], EPEL [downloads], and ELRepo.org
RHEL 7 manuals, CentOS: [vault, mailing lists]