Links of Interest

http://www.xelatec.com - Commericial VoIP and RoIP Products and Services

http://www.asterisk.org/ - Home page for the Asterisk Project.
http://www.digium.com/ - Asterisk Products and Services.
http://www.freepbx.org - Asterisk Configuration Graphical User Interface
http://app-rpt.qrvc.com/ - Contributor WA6ZFT, Steve Rodgers' Amateur Radio site.

http://allstarlink.org/ - Amateur Radio Asterisk w/app_rpt Node Authority
http://stats.allstarlink.org/ - Realtime Display of AllStar Amateur Radio Sites.

http://www.xelatec.com/trac/pub/ - view XIPAR source code.
http://www.xelatec.com/svn/iaxrpt/ - iaxRpt source repository.
http://www.xelatec.com/xmantis/ - Xelatec Bug Tracker for the XIPAR project.

http://www.voip-info.org/ - A great Asterisk and VoIP reference.

http://www.dmkeng.com/ - A General Purpose USB Radio Interface.
http://www.aretta.com - An excellent hosted Asterisk service provider.
http://www.atlaug.com - The Atlanta Asterisk Users Group.
http://www.exabar.com - VoIP and IP PBX Phone System Solutions.

Asterisk: The Future of Telephony (2nd ed.) This book is the mother of all Asterisk resources! It's a 15MB .pdf file so make sure you have Adobe Acrobat Reader installed and give it some time to download.

http://whatismyipaddress.com/ - Where are you on the Information Super Highway?

http://www.tightvnc.com/ - A must have for collaborative problem solving.

http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html - Also must have so you can log into your Linux/Asterisk server from your Windows machine.