PHP：

VB: http://www.vbulletin.com>;
IPB: http://www.invisionboard.com
wBB: http://www.woltlab.de
DZ: http://www.discuz.net
phpbb: http://www.phpbb.com
Celeste Bulletin Board (CBB): http://www.celestesoft.com
Phorum: http://phorum.org
WOWBB: http://www.wowbb.com
FUD Forum Bulletin Board: http://fudforum.org
PHPwind: http://www.phpwind.net
Molyx Board: http://www.molyx.com
MyBulletinBoard (MyBB): http://www.mybboard.com
Simple Machines: http://simplemachines.org
Blue Magic Board (BMB): http://www.bmforum.com
PunBB: http://www.punbb.org
Open Bulletin Board (OpenBB): http://openbb.com
XMB: http://www.xmbforum.com
minimalist bulletin board(miniBB): http://www.minibb.net
MercuryBoard: http://www.mercuryboard.com
Smart Bulletin Board: http://www.smartbb.net
MyTopix Personal Message Board: http://support.jaia-interactive.com
OvBB: http://www.ovbb.org
SEO-Board: http://forums.seo-board.com
Simple Forum: http://www.gerd-tentler.de/tools/forum/forum.php
MyPHP Forum: http://www.myphp.ws
podBB: http://phppod.com
IceBB: http://icebb.net
UseBB: http://www.usebb.net

CGI/PERL：

LEOBBS: http://bbs.leobbs.com
Ikonboard (IB): http://www.ikonboard.com
bbBoard v2: http://www.bbv2.com
Yet Another Bulletin Board (YaBB): http://www.yabbforum.com
E-Blah: http://www.eblah.com
Gossamer Forum: http://www.gossamer-threads.com/forum/

ASP/.net：

DVBBS: http://www.dvbbs.net
leadbbs: http://www.leadbbs.com
Web Wiz Forums: http://www.webwizguide.info/web_wiz_forums/default.asp
Snitz Forums 2000: http://forum.snitz.com/default.asp
MegaBBS: http://www.pd9soft.com
ASP.NET: http://forums.asp.net
ASP Playground.NET: http://www.aspplayground.net
Snowman Forum (SF): http://www.xinboard.net
ASPBB: http://aspbb.org/forum/

JAVA：

Jute Powerful Forum: http://www.cjsdn.com
mvnForum: http://www.mvnforum.com/mvnforumweb/feature.jsp
Java Forum: http://www.jivenetworks.com/software/jsp/javaforum/
Express BBS: http://www.spfol.com/forum/