unix stuff

The Unix Programming Environment - K&P (PDF)
The C Programming Language - 2nd Ed K&R (PDF)
Advanced UNIX Programming - 2nd Ed (PDF)
Advanced Programming in the UNIX Env 3rd Ed (PDF)
The Design of the UNIX Operating System (PDF)
Life With Unix - Libes (PDF)
The Unix Hater's Handbook (PDF)
Expert C Programming - Linden (PDF)
The Linux Programming Interface (PDF)
The Art of Unix Programming - Raymond (PDF)
Modern Operating Systems 4th Ed - Tanenbaum (PDF)
UNIX Programmer's Manual - 7th Ed. Vol 1 (PDF)
UNIX Programmer's Manual - 7th Ed. Vol 2a (PDF)
UNIX Programmer's Manual - 7th Ed. Vol 2b (PDF)
UNIX and Linux Sys Admin Handbook 4th (PDF)
The Standard C Library - Plauger (DJVU)
C in a Nutshell - O'Reilly (PDF)
Unix Power Tools - O'Reilly (PDF)
The Practice of Programming - K&P (DJVU)
The Elements of Programming Style - K&P (DJVU)
The Design and Implementation of the 4.4 BSD Operating System - McKusick et al. (PDF)

computer science

The Art of Computer Programming, Vol 1 - Knuth (PDF)
The Art of Computer Programming, Vol 2 - Knuth (PDF)
The Art of Computer Programming, Vol 3 - Knuth (PDF)
The Art of Computer Programming, Vol 4a - Kunth (PDF)
Compilers: Principles, Techniques, and Tools (Dragon Book), 2nd Edition - Aho (PDF)

hacker culture

The Jargon File
textfiles.com (gopher://0x1bi.net)
The Conscience of a Hacker
Hacker Crackdown - Bruce Sterling (Project Gutenberg edition)
The Geek Code
The "Only" Coke Machine on the Internet

phlogs and gemlogs

Slugmax's Phlog (gopher://r.circumlunar.space)

gopher stuff

Gopherpedia (gopher://gopherpedia.com)
What is Gopher? (gopher://sdf.org)
The Rise and Fall of Gopher
SDF Gopher Directory (gopher://sdf.org)
Floodgap's Gopher Server (gopher://gopher.floodgap.com)

other interesting reads

Word Processors: Stupid and Inefficient (html) (http://ricardo.ecn.wfu.edu)

www stuff

Wiby - no js http search engine (https://wiby.me)
DuckDuckGo - no js (https://html.duckduckgo.com)