Many have asked me How I  Join the myASQ LED Community?
I have replied to many that there is a 
Click on "Communities" on the myASQ top menu.  Then under Community Categories on the right, select "Technical" communities at the bottom right.  There are currently 20 Techical Communities in myASQ.
The myASQ Lean Enterprise Division is about half-way down the alphabetical list of Technical Communities. You can select the community to participate in Discussions, see Members (currently almost 600) and see Events, News and Files.
If you want to "Join" the Lean Enterprise Division, the note at the top of the Technical Communities page states:

Technical Communities

Technical communities are topic and industry-specific based on member interests. They are member-led communities that include divisions, forums, interest groups, and technical committees. Division enrollment is included in your ASQ membership. If you would like to enroll in multiple divisions, please contact customer care.  

You can participate and respond to all the features (i.e., read our Newsletters and eZines) and participate in our Discussions without being an official member.  If you want to joiun the Division, contact ASQ Customer Care.  Depending on you ASQ Membership renewal date, you may be able to join the ASQ Lean Enterprise Division at no additional cost.