BBS; DMR Technical; wonderful resource!
www.p25.ca/forums/49-MotoTRBO.ca

What is DMR
http://en.wikipedia.org/wiki/Digital_mobile_radio
http://wiki.radioreference.com/index.php/DMR
http://wiki.radioreference.com/index.php/MOTOTRBO

Information on DMR and other digital voice formats in the HAM bands
http://www.dvara.org

Looking to purchase a new Motorola DMR (MotoTRBO) radio or parts?  Contact Jeff @
http://www.sandyscomm.com

Blogging on MotoTRBO by DJ0WH
http://cwh050.blogspot.com.au/

Purchase a new HYTERA DMR radio from
http://daviscommunications.net

Purchase used DMR radios on eBay
http://www.ebay.com/sch/i.html?_nkw=MOTOTRBO

Yaesu announces they will start selling P25 and DMR radios soon.
http://tinyurl.com/corqzys

Cant afford radio? Still can listen with police scanner and
http://wiki.radioreference.com/index.php/Digital_Speech_Decoder_%28software_package%29
you can also decode the DMR data stream
http://github.com/IanWraith/DMRDecode

If you want to use your radio on a networked repeater you must apply for a DMR radio ID.
http://dmr-marc.net/subscriber-program.html

The process is not automated. When your added you will receive a email. You can also verify via the DMR radio ID database.
http://www.n6dva.org/trbo-database/index.php

When you get your radio ID you will need to program you radio.  Motorola CPS (customer programming software) is used to program MotoTRBO brand radios, and your supposed to purchase it from Motorola.  I believe hytera CPS is free with the radio of very cheap to purchase.
check http://www.hytera.us

Programming Cables for Mototrbo Radios are a straight USB connection.  This is a Portable cable diagram
http://kd8eyf.org/images/mototrbo.PNG
This is the Repeater/mobile cable.
http://img10.imageshack.us/img10/5716/mototbocable2.jpg

When programming your radio, you may find it complicated. There are a few published MotoTrbo codeplugs (radio configuration file) that you can copy and paste or clone into your radio.
codeplugs.
http://www.dvara.org/mototrbo/dmr-us-region-contact-list-and-uhf-repeaters-02-11-12.zip
http://trbo.org/dci/codeplug/UHF-6500-USA-TRBO-Repeaters-2011-11-12-R010800.ctb

While programming your radio there are a few important settings you must not goof up. Make sure to follow the guide here.
http://dmr-marc.net/subscriber-program.html

Live audio of the DCI/TRBO-6 and DMR-MARC networks is streamed online.  There is a delay.
http://www.radioreference.com/apps/audio/?action=wp&feedId=10347
http://www.ustream.tv/channel/dci-trbo ( video w/commercials )

Real-time log of DMR-MARC network activity
http://dmr.darc.de/

Additional information
http://www.dvara.org
http://dmr-marc.net
http://www.trbo.org
www.norcaldmr.org
http://batboard.batlabs.com
http://forums.hamsexy.com
http://www.repeater-builder.com/rbtip

Yahoo Groups
http://groups.yahoo.com/group/MOTOTRBO (main TRBO/DMR support group)
http://groups.yahoo.com/group/HYTERA (Hytera radio discussion)
http://groups.yahoo.com/group/MIMototrbo (Michigan); MI-5 or C-MEN possibly
http://groups.yahoo.com/group/mototrbousa (USA)
http://groups.yahoo.com/group/norcal-trbo/ (Nothern California)  (Website)
http://groups.yahoo.com/group/APCO25-DMR-DL (German)
http://groups.yahoo.com/group/mototrboco (Colorado)
http://groups.yahoo.com/group/azham_dmr (Arizona)
http://groups.yahoo.com/group/IllinoisP25-DMR (Illinois)
http://groups.yahoo.com/group/TRBOscan (Rx only)
http://groups.yahoo.com/group/DMR-Digital_Mobile_Radio