Roam Research

Roam Research pioneered the concept of networked thought with its bidirectional linking and daily notes page. Its block-based structure allows for non-linear writing and deep interconnection of ideas, making it excellent for research, brainstorming, and Zettelkasten methodology. The graph overview visualizes connections. It targets academics, writers, and thinkers.

It uses a subscription pricing model. While newer tools have emerged, Roam remains a top choice for its pure, focused approach to building a connected knowledge graph and its dedicated community of power users.