Other AVP Clans

101st.
82nd Airborne 1st brigade.
9th Army CMD.
9th CMC.
AIE (Awesome Invincible Elites.
AL-Mame: Clan name retired on 9/15/2003. Dead link.
Alpha Clan.
AoR (Army of Rebels).
ARC (Assault & Recon Corps).
AVP News.
AXP/WallShadows: Home of AXP Mod.
BAA (Bad Ass Aliens).
BAM (Bad-ass marines).
BLITZ.
B-O [JPN].
CBC (Celestial Blaze Clan).
CGS (Come Get Some).
Circle of Seven.
CL: Used to link to ATL.
COD.
DA.
DH (Drunken Heros).
DMW (Dead Men Walking).
DOA (Dead on Arrival): Clan DOA is DOA.
FBDoA (Frag Bait DOA).
Fu (Fusion Clan): Their forum is here.
Gold Squadron.
GU (Guard Unit) Soldiers.
HEL (Hell's Elite Legions).
IA (Invincible Aliens).
IL (Imageless) can't find a link to there site.
JUDGE Clan.
K (Team Kindred).
Kazeyomi Hive.
Marlboro Yautja.
MOE (Marines of Elite): Dead link.
MWA (Marines With Attitude).
NBK (Natural Born Killers).
NT (New Terminator).
OD (Obsidian Dragon): Allied with MERC. Their forum is here.
RAW
REB (Rebellion): AVP section seems dead.
RFF: Is now a German football fan site.
RID (Robots in Disguise):No longer in avp2.
RIP (Rest in Peace).
RPC (Red Phoenix Clan).
SC (Stealth Cadre).
SIN (Sniper Information Network).
SQLM (Squadron de la Mort).
SS (Species Slayers).
TA (Triple Alliance).
TRI.
USMM (U.S. Mercenary Marines).
WPC (Wolf Pack Clan).
XLR.
XOD/KA/UA.

Strategy Guides

Strategy tips.
More strategy tips: But with some pop-ups (about 2 right now).
Alien walking guide from above.
Alien shooting guide from above.

Maps

Install a Map.
Community Map Pack list.
Community map download.
Fileplanet: Lots of downloads, including new community map pack by Acid Glow. And the WinRar program to unpack it.
AVP2 FAQ: Including installing custom maps.
Extra Maps.
Single player map update.

Mods

AcidGlow's Skins.
Planet AVP.
Installing a .pfp file (Skin).
AVP2 Downloads.
How to skin.
Great place for skins - Bad Ass Marines clan.
MOD (Modders of Death): Website dedicated to AVP2 Mods.
Skin Network.
Yeyinde's Skins.

Voice Chat Systems

mIrc: Internet Relay Chat program. Can be used during matches.
Roger Wilco: Voice chat program. Some other sites associated with it are Resounding Technology, Download.com
Yahoo Messenger: Has voice chat now.
Bolt on voice chat from Gamespy.
Paltalk: A voice chat system.
Internet Voice chat.
Iphone: Free internet phone calls. Another site is iPhone support and for hardware version, and Wired.

Other Resources

AccessDenied.Net: Registration for email notification of challenges.
Alien films series archive.
AVP2 Articles.
AVP League.
AVP nation FAQ.
AVP2 Forum at Vivendi Universal Games.
Best of the Best Competition.
DMOZ Avp links.
DMOZ help files.
French game forum on AVP2.
Google AVP2 site.
Lithtech overview part 1, part 2, and part 3.
PlanetClans.com: Links to other clans and a whole heap of other info.
Professional game players.
Sierra Homebase.
The Derelict.
Yautja Encyclopedia.