Templates

1. 280 Group - the most comprehensive set of FREE Product Management templates.  The site also has a broad selection of low cost toolkits as well.  Sign-up for the newsletter while you are there.
   
2. ProductBytes - Run by Rich Mironov, this site has a number of free templates and useful information plus a great newsletter.

Yahoo! Groups

1. Leanpm - This is a NEW discussion group for product managers to discuss new approaches to product management and is the group for Agile-Excellence readers.  It is not for announcements. 
   
   
2. 280 Group LinkedIn Group (ok, this is not a Yahoo! group, but it is very active PM discussion group)
   
3. agile-usability
4. extremeprogramming
5. kanbandev
6. leanagile
7. scrumdevelopment

There is no shortage of good Yahoo! groups. The ones above are some that I follow regularly. There are also a number of product management groups.  They tend to mostly be for announcements and very little discussion. The groups are usually connected to a local PMA (product management associations.) The 280 Group maintains a good list.

Product Management Associations

There are a number of PM associations around the world. Many function purely as discussion groups. I have chosen to highlight the most active associations that have their own web presence.

1. AIPMM - Association of International Product Marketing and Management
2. BPMA - Boston Product Management Association
3. SVPMA - Silicon Valley Product Management Association
4. TPMA - Toronto Product Management Association

Agile/Lean Web Sites

1. Agile Alliance
2. Lean Enterprise Institute
3. LimitedWIP Society
4. Mountain Goat Software (Mike Cohn)
   
• Presentations
• Articles
• Blog
  
5. Scrum Alliance
6. Scrum.org
   

Blogs

• Working in Small Batches (2/16/2010)
• Why Queues Hamper Our Success (2/4/2010)
• The Myth of the Iron Triangle (1/20/2010)
• It's Time for Product Management to Become Lean (1/6/2010)

Product Management and Product Marketing

1. April Dunforf, Rocketwatcher
   
2. Brainmates, Brainrants 
3. Brian Lawley, Product Management 2.0 
4. Ethan Henry, On Product Management
   
5. Ivan Chalif, The Productologist
6. Ivan Lybbert, My Product Management Opinion
   
7. Jeff Lash, How to Be a Good Product Manager
8. Rich Mironov, Product Bytes
   
9. Michael Ray Hopkin, Lead on Purpose
   
10. Tom Grant, The Heretech
    
11. Two West, The Brand Show
    

Agile

1. Corey Ladas, Lean Software Engineering
   
2. Karl Scotland, AvailAgility
   
3. Mike Cohn, Succeeding with Agile
   
4. Rally Software, Agile Development Blog
   
5. Ryan Shriver, The Agile Engineer
   

Design

1. Jared Spool, UIE Brain Sparks
   
2. Jeff Patton, Holistic Product Design & Development
   

Books

I still believe books are one of the most economical and easily accessible formats for deep learning.  Listed below are number of books that have influenced my thinking in my career. Please note that some of these books are out of print, but you can usually find a used copy in excellent condition at a great price.

Product Management and Marketing Books

Design and Customer Research Books

Agile (excluding Lean) Software Development Books

Lean Books

General Software Development Books

General Management and Strategy

Reader Only Resources

Click here to be taken to the reader only resources page.