All of these sites support anonymous FTP:

1.	Walnut Creek CD-ROM	ftp.cdrom.com	If it's not the busiest FTP site, it should be. From complete distributions for FreeBSD and Linux to add-ons for Quake, you'll find it all here.
2.	Papa Winsock Archive	papa.indstate.edu	Another collection of just about everything you'd want. Tons of shareware and demos.
3.	SunSite UNC	sunsite.unc.edu	An oldie but a goodie with an enormous array of Unix-related files (including the Linux OS).
4.	Id Software	ftp.idsoftware.com	Quake. Doom. Hexen. Straight from the source.
5.	OAK Repository	oak.oakland.edu	Another megadirectory. Although it's often busy, it's worth the wait.
6.	Happy Puppy	ftp.happypuppy.com	A well-organized collection of game-related software, including cheats, movies, and apps.
7.	Microsoft	ftp.microsoft.com	The best place to go for the latest Windows drivers, updates, and patches.
8.	Netscape	ftp5.netscape.com	Where to snoop for the newest version of Navigator the weekend before it ships.
9.	Arizona Macintosh Users Group	ftp.amug.org	Almost everything Mac, with mirrors of other popular Macintosh sites.
10.	CICA	ftp.cica.indiana.edu	An excellent repository for Windows 3.1/95/NT software.