Well, I feel honoured to have planted the seed of what hopefully will allow all members more opportunities to share their knowledge and passion for CZ firearms. In my introductory post, I mentioned the "Red Rifles" section of the Canadian GunNutz forum, which probably has the single largest collection anywhere of information about the Samopal (SA) VZ-58 and CZ-858 rifles, made in the Czech Republic. Much of that information is applicable to the various United States manufacturers of the -58 semi-auto rifles (I won't even try and list the various companies).
Canadians have been importing, shooting, modifying and "pimping" the VZ-58 platform for many years - long before it became known in the United States. Partially this was because the AK-47 and all variants are banned in Canada, whereas the VZ-58's have been readily available and relatively inexpensive. They have proven to be a high-quality, lightweight and durable firearm.
There are several companies in Canada that make aftermarket parts for improving and modernizing the -58, and some of these are now being imported into the United States by various dealers. Unlike the United States, where an imported firearm has to have a percentage of its parts "American Made", in Canada we have always imported these rifles directly from the CZ factory in the Czech Republic, and there is no requirement for "Canadian Content". First-time visitors to the Canadian sites may find the terminology and legal aspects a bit confusing - but that does not interfere with the wealth of knowledge available.
An often overlooked source of information about the VZ-58/CZ-858 semi-auto rifles is, (believe it or not) Youtube. There are literally hundreds of videos posted there by owners - videos that describe everything from field-stripping, detail bolt stripping, cleaning methods when using east-bloc surplus ammunition, sighting systems, rail, grip, and handguard systems, modifications, range shooting - the list goes on and on.
Another good source for information on CZ and BRNO firearms is the CZ/BRNO section of RimfireCentral.com
This group specializes in the .17 and .22 CZ and BRNO rimfire long arms, but there's also a good section on CZ centerfire rifles. You will find a great storehouse of information on the various CZ hunting rifles, sights, rings, parts sources, interchangeability and availability, the history of BRNO and CZ - and plenty of mouthwatering pics under the headings "Show Us Your Brno's" and "Show Us Your CZ's".
There are many members with encyclopedic knowledge of all things CZ, including some from the former Czecheslovakia and current Czech Republic who actually work for, or have worked for, CZ and BRNO. I have found them to be an amiable and helpful group, and the accumulated FAQ's on various subjects are really impressive. So, there's another link for all you CZ fans to have a peek at. As with CGN, membership is free and signing up takes only a few moments.
Sorry to have gone on at such great length; I hope this information will be of some use to other CZ afficianados!