I’d like to learn more about NEBS, are there any seminars?

Yes, there are and each one provides an excellent introduction to NEBS.  There’s generally 2 big (> 250 attendees) seminars sponsored by Verizon, Telcordia, and/or UL each year, and a few others by some NRTLs.  Check out these sites for the latest information:

NOTE:  These are NEBS seminars that I am aware of - please let me know if you know of others and I’ll post them here.