Originally launched as Electronic Networking in 1991 Internet Research journal has charted the development of the Internet as we know it, publishing the works of visionaries such as: Mitch Kapor, Marc Andreessen and Sir Tim Berners-Lee. The special anniversary e-book republishes six seminal articles from the early 1990s. The original authors or affiliated organizations have also provided a retrospective commentary reflecting on the research, policy, analysis, design and vision that they originally presented some twenty years ago. The result is a fascinating glimpse into the minds of six ground-breaking researchers and six streams of research.