There are many Usenet newsgroups that may contain articles on VPNs and VPN products. We’ve come up with a list of groups that contain discussions about VPNs:
This group often contains discussions about L2F, L2TP, and the PIX firewall.
A group where many VPN announcements and articles are posted; it’s also a great place for firewall information in general.
All of these newsgroups have regular discussions of Microsoft VPN products.
This group sometimes contains articles relating to VPNs, tunneling, and IPSec.
A newsgroup that deals specifically with cryptography issues.