Cisco Maillists

Since you have to work with different equipment and large networks, sometimes there are controversial issues that are very difficult to find in books / internet, it’s much better to ask your question on the mailing lists, and to communicate with like-minded people for one thing. Therefore, I bring to your attention a couple of newsletters on the network topic:
1) puck.nether.net Personally, I subscribe to cisco-nsp. As for the people who communicate there, the author of the books that appeared on Cisco Press, and a large number of people with certificates of CCIE, was noticed.
2) groupstudy routines are designed to help each other with labs to prepare for the CCIE.
UPD
More mailing dedicated to preparing for labs for CCIE certification onlinestudylist