They are EVERYWHERE!
Most will be following accepted Christian teachings; but many veer off into never-never land; thus we occasionaly get HeavensGaters, Branch Davidians, Jim Jones followers and MORMONs.
'Members' of these groups, if they want to avoid error, MUST follow the example of Acts 17:11
These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so.
Absolutely.