Updated Demos page

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 Newdoom

 Master server -- this is where you upload things.  mirrors
 http://www.doomworld.com/idgames/?search
 Doomsearch / Doomsearch

 DSDA wads at 3ddownloads
 3ddownloads // Doomworld
 Compet-n -- Adam Hegyi / Compet-N Forum / Doom Speedrunner's Forum / Heretic-N
 Doomed_SDA // Opulent-Doom2 //  TAS - DSDA // i d // Opulent FPS Demos .

 Grazza // ClassicDoom // Doom2.net // Compet-n.doom2.net
 PrBoom // Prboom  // Prboom-plus (DW thread ) // Zdoom // Eternity // Legacy
 Chocolate Doom //

Mirrors as of 8/2006:
*** Germany (*)   ftp://ftp.fu-berlin.de/pc/games/idgames/      ***
*** Greece        ftp://ftp.ntua.gr/pub/vendors/idgames/        ***
*** Russia        ftp://ftp.chg.ru/pub/games/idgames/           ***
*** San Francisco ftp://ftp.mancubus.net/pub/idgames/           ***
***               http://ftp.mancubus.net/pub/idgames           ***
*** New York      http://youfailit.net/pub/idgames/             ***
*** Australia     http://ftp.planetmirror.com/pub/idgames/      ***
***                                                             ***
*** (*) Primary download server - please use this instead       ***
*** of the master server - ftp.gamers.org for uploads only      ***
*** For more info: http://www.3dgamers.com/about/archives.html  ***

For even more, check out my extremely messy bookmarks; which has such up-to-date links as Functional Entropy...