Unreal

Blinded By Reality
GameSpot feature with screenshots by Geoffrey Keighley.
http://www.gamespot.com/features/makeunreal/

Buster's Unreal Gold Site
Contains player skins, patches, editor tools, maps, mods and scripts.
http://www.members.shaw.ca/gatherstone/

Celtic Warriors
A clan that provides forums, memberlists, server stats, a texture database, downloads and walkthroughs.
http://www.celticwarriors.net/

Cincinnati.com
[4.5/5] Review by James Bottorff with screen shots. "Unreal's graphics set a benchmark for the first-person genre..."
http://www.cincinnati.com/freetime/games/reviews/unreal.html

GameSpot
Review by Tahsin Shamma, scoring 8.4/10: "Unreal is a truly great single-player game."
http://www.gamespot.com/pc/action/unreal/review.html

GameSpot's Unreal Strategy Guide
Preview, walkthrough and cheat codes.
http://www.gamespot.com/features/unreal_sg/

Hide and Seek
Explains the Hide and Seek mod and offers the download.
http://hidenseek.5u.com/

HyperCoop
Includes modifications, forums, and screenshots.
http://hypernl.thenerdnetwork.net/

Nali BaBa Land
Offers several modifications to download, and a forum.
http://www.freewebs.com/darklordsrealm/

Neoseeker
Offers a gateway to cheats and guides for the game.
http://www.neoseeker.com/Games/Products/PC/unreal/unreal_cheats.html

Real CTF
Capture the flag style modification.
http://www.planetunreal.com/realctf/

SkaarjMonuments
Devoted to the creation, sharing and discussion of Unreal 1 maps.
http://www.skaarjmonuments.com/

Unreal Exposed
Strategy guide, interviews, and reviews.
http://www.gamespot.co.uk/pc.gamespot/features/unreal_week/