The article summarizes the results of the long-term project "Languages of Russian Cities" (LoRC) of the regional vocabulary collecting and researching, which, unfortunately, was not depicted in any academic publications for a number of reasons. About 4 thousand pieces of regional materials were collected, systematized, and became the basis of the typology of regional differences consideration and the concept of a regional norm discussion. Reliability issues and methods of computer-based regional corpus research, including automatic text classification and author profiling, are paid attention to. Along with this article, the "reincarnation" of the LoRC project is also returning to the fund of open lexicographic resources basing on the joint portal for distinctive sociolinguistic research, which includes the General Web-corpus of Russian Language and the interactive dictionary "Languages of Cities and People" (LoC&P)