Groovy Graphics, Man
AcidWarp Trippy Screen Display
FTP: ftp.rahul.net (still online and open to the public!)
Directory: (Not there, sorry)
"Whoaaaaahhhhhhh Dude! It's like being blotto on blotter without the two-day hangover. Played on thousands of screens in thousands of dorm rooms while thousands of minds turn to Jell-O™."
Archived? Better than that, upgraded! As captured and documented by Eyecandy Archive (tagline: "Turn your computer into an expensive lava lamp"), which also links to a half-hour HD (1920x1080) YouTube video:
Fractal Picture Archive
FTP
"Mandelbrot masturbation. Pretty pictures already rendered for the computationally-challenged."
Still online? No, this archive of alt.fractals.pictures is not still online, but Flickr (founded in 2004) has a decent collection with the fractals tag, and Deviantart (launched in 2000) has a collection in the fractals topic.
Hacking/Phreaking
H/P WWW Site
WWW
"A glimpse of the dark side of the Web. FOR INFORMATIONAL PURPOSES ONLY! (yeah, right)."
Still online? No, and not archived, or even remembered!
Anything like it? So much. So very much. But let's continue.
Cult of the Dead Cow
FTPs
"These dOOdZ are dangerous! Hundreds of incredibly witty, well-written files covering everything from simple social engineering to truly wizardlike techno spoofing."
Still online? The FTP is offline, but cDc lives on with what is currently a super low bandwith landing page (ASCii!)
Phrack
E-mail and FTPs
"Phrack—what Net. Spider can be without a passing knowledge of Phrack"? The grand pappy of hacker/cracker/phreaker pubs."
Still online? The FTP links are dead, but Phrack lives on! With more ASCii, too. And the archives are basic directories of text files and tgz archives.
Surfpunk Technical Journal
Mailing List
"The 'dangerous multi-national hacker zine' is a great resource (and it's not afraid to laugh at itself). Fun and informative."
Still remembered? Yes, in an archive of WIRED from 1994, when it was much closer to the bleeding edge.