An ever-evolving list of helpful links and information;

Format Guide1.0 (PDF)
Format Guide 2.0 (PDF)
SPC Postal Rate Card (PDF)

Publications
American Printer
DIRECT Magazine Online
DMANews
Graphic Arts Magazine
Printing Impressions
Printing News

Blogs and Podcasts
Print CEO-Print Industry News Blog
WhatTheyThinkGoingGreen -A Resource for Today's Green Business
Margie's Print Tips
OnPaper, New Page’s podcast series
Ed Lives Here
UnisourceGreen Blog

Associations
Business Marketing Association of Chicago  (member)
Chicago Association of Direct Marketers (member)
Direct Marketing Assoc.  (member)
National Association for Printing Leadership
Printing Industries of America
The Printing Industry of Illinois / Indiana Association (member)
The Print Council

Green Business Associations
Green Business Alliance  (member)
Forest Stewardship Council (FSC)  (member)
Sustainable Forestry Initiative (SFI)  (member)
Programme for the Endorsement of Forest Certification (PEFC)  (member)
Direct Marketing Association (DMA)  (member)

More to come…