Chris Rudland's very helpful revision notes for Networking Essentials and NT4.0 Workstation (I nicked the graphic and wrecked it entirely without permission - if you ever see this Chris, I'm really sorry).
	Revision notes for most exams within the MCSE program
	Microsofts own information on their MCSE program. Another nicked and tampered with graphic that if you know who found out, I probably wouldn't have a website any more.

	cert.org - up to date information on securing your system and the people who will help if you've been hit by a hacker.
	jr66's Hacking archive - useful (though slightly out of date) information on hacker prevention. Mostly UNIX oriented (and how to spell kewl and stuph) and the links are worth following.
	The Happy Hacker texts archive - even more on how to spell kewl and stuph, but a lot of very useful info for various platforms.

	I'm a sad techie at heart - turn that old 486 into a webserver for free !!! - and they've got really cute penguins.
	SysInternals - get freebie software including the BSoD screensaver and loads of information about what makes most Microsoft OSs tick.
	Winfiles.com - really handy tips and links.
	Tucows. You can find almost anything you want here.
	Arachnophile - far handier than notepad for designing webpages. You can also find EasyTerm here - a useful replacement for windows Telnet.
	This incarnation of IRC does so much more.
	Creators of helpful FTP clients and more.
	Paint Shop Pro. All the graphics on this site have been through this program at least once.
	WinZip.
	Tips and Tricks for Win95 in help file format.