Oil & Gas Industry:

International Tube Association
http://www.itatube.org/

Pipeliners Association of Houston Texas
http://www.houstonpipeliners.org/

Tube & Pipe Association International
http://www.tpatube.org/TPA-Homepage.cfm

Canadian Association of Oil Well Drilling Companies
http://www.caodc.ca/

Petroleum Services Association
http://www.psac.ca/

Oil Field Workers Registry
http://www.oilfieldworkers.com/

Canadian Oilfield Service & Supply Directory
http://www.cossd.com

Memory Book Publishing Industry:

PMA the worldwide community of imaging associations
http://www.pmai.org/

Industry News on Printing
http://www.quickprinting.com/

PDN Online Photo District News
http://www.pdnonline.com

Industry News of Digital and On Demand Printing
http://www.digitalprint360.com/

For Photography Professionals
http://www.imaginginfo.com

Network for Independent Photo Imagers
http://www.ipiphoto.com/

Photography Resource & Network
http://thephotoforum.com

Marketing Knowledge for Digital Printing Executives
http://www.ondemandjournal.com/

Technical Forum for Printing Professionals
http://www.letstalkprint.com/

For Printing Professionals
http://www.graphicartsonline.com/