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]
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

The Intranet
Faculty Pages, Teaching Evals, and Wolverine Access
Descriptions of our Courses and Undergraduate and Graduate Programs
The Combinatorics Seminar and the Department weekly seminar schedule

University of Michigan Resources

The Google portal and M Community (gag)
The Academic Calendar and course schedule: Fall / Winter [open sections]
Mirlyn, on-line journals, and scientific databases
The Reference Shelf, including the OED (restricted to umich.edu)
The Michigan Daily and the University Record.
ITCS, the ITCS login service, the SCS, and their documentation index.

Computing Resources

TidBITS and the Linux Gazette (a monthly)
The latest on UM computer purchasing
The Linux Documentation Project and the ThinkPad Wiki
Linux Weekly News and Slashdot
CentOS: [downloads, documentation, discussion]
Fedora Extras [downloads] and EPEL [downloads], and ibiblio