http://torzcd47rw4qh36g4yqxvv2tmifgmu6jjalkyqz4e4lzzwtfdfc7qaqd.onion/old-skool-osint-we-are-osintcurio-us/index.html
Old tools such as physical telephone books and city directories have been replaced by people search services, search engines and other tools today. And these current means will be replaced by other tools in the future. This is another reason OSINT researchers should focus on their investigative and analytical processes, not tools; tools and who controls them inevitably change over time and are eventually replaced by others.