Qiqqa is by far the strongest solution for research and managing pdf's. Zotero, named as a comparison is weak as it does not allow pdf;s to be loaded into its interface - you need to use a pdf reader, which defeats its whole purpose. With Qiqqa documents in a library can be searched together. It has excellent maps of your libraries. It is not prefect, having a few glitches, but still is the only one of its kind.
Based on our record, Flying Logic seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Somewhat related is _Flying Logic_, which was ostensibly made to to enable ToC-type thinking processes at Northop Grumman. https://flyinglogic.com/ For a period in my life I was very taken by the promise of a node-based graph visualisation of projects, enabling you to quickly track dependencies, constraints, next steps, redundancies and so on. - Source: Hacker News / 5 days ago
Just as a data point. This feature of one-note (text boxes where you click) is the single reason I’m looking for something else. I absolutely hate any interface that has me fiddle with layout when I’m trying to focus on semantics. Not that this should impact Obsidian much, since I assume the canvas thing is optional there, just a data point. Related to infinite canvas _do_ checkout “The Humane Environment” [1] it... - Source: Hacker News / over 1 year ago
Flying Logic comes to mind as a possible tool for organizing your analysis and analyzing relationships between notes and attributes ("aspects"), though FL is not a note-taking software. Source: over 1 year ago
Visual Understanding Environment - Visual Understanding Environment (VUE) is a mind-mapping and concept-mapping tool.
Mendeley - Easily organize your papers, read & annotate your PDFs, collaborate in private or open groups, and securely access your research from everywhere.
ThinkComposer - Software for create adaptable and multilevel diagrams, concept maps, mind maps and models
Zotero - Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
FreeMind - FreeMind is a premier free mind-mapping software written in Java.
JabRef - Graphical Java application for managing bibtex (. bib) databases.JabRef · JabRef Help · JabRef | Blog · OpenOffice/LibreOffice .