I use a resurfacing system based on 'last edited' dates and 'retention rating' in Notion. https://www.notion.so/Resurfacing-notes-422e9383292a499c8e90e2c7a32ba4ed
A block model (used in Roam and Athens at least) means that each text block (paragraph or outline bullet point) is stored as a discrete object with an identity, permitting block includes and other features.
The alternative is the page model used by Logseq and Obsidian, where text is stored as pages rather than blocks.
For most people there isn't a ton of difference between these (the exception being block includes) but I have some personal tools that assume a block model.
Anytype.io looks pretty interesting, albeit pure hype for now. It's impossible to tell from that website what it really does or who is behind it. I signed up for their alpha list though.
There is a software I didn't see anyone mention it for PKM, it's TreeSheets, it's Open Source.
It's kind of a Hierarchical tree like spreadsheet manager. I never use it in depth, but I think it's worth checking.
Emacs Org Roam builds upon Org mode which offers so much more than linked notes in building a PKMS so it is more accurate to list it as Org mode.
Emacs also has another mode called Hyperbole which arguably was ahead of its time as a PKMS. The author u/rswgnu can elaborate if necessary.
Joplin is another that deserves to be listed.
There's a ton of stuff you can automate with IFTTT, just click around. Here's the applet i use for the YT-vids: Save liked Youtube video to Raindrop.io - IFTTT.
If you're interested in this thread, you might also enjoy
https://bookmarkos.com/ and https://bookmarkos.com/every-bookmark-manager-ever-made.
"...an attempt to categorize every bookmark manager ever made into the following categories: visual-based, list-based, start pages, search-based, tag-based, tab management, read it later, image bookmarking, privacy-focused, sync-based, offline downloadable solutions, and other."
Caveat: last updated 18 June 2021.
There is another really long list here:
https://www.notion.so/Artificial-Brain-Networked-Notebook-App-a131b468fc6f43218fb8105430304709
You can do this fairly easily with a macro in Tiddlywiki. There are even “versions” of Tiddlywiki that behave like Roam that are free if you like that format.
I’ve been personally using it for years and I really like it for the fact that when you want to do something like this (or really anything else) you can with the built in tools/ a plug-in. There is a learning curve to it though. Luckily, there is also a great community willing to help whenever you have questions.
They're different file formats used by different tools. Org refers to org-mode, which comes from Emacs which is an old-style text editor.
I started with Markdown in Logseq because I switched over from Obsidian (and per /u/yourstrulysawhney's sibling comment here, Markdown is more compatible with other tools including Obsidian).
I think there are probably converters out there between the two - but unless you're really bought into org-mode I'd suggest you stick with Markdown.
I came across https://www.memrey.com/ and have been very pleased with it:
[Free]
[+ mobile(iOS)][desktop(M)]
[Links][Mind-mapping]
and encryption of notes.
UpNote (https://getupnote.com)
I purchased it at a one-time price; no subscription (at least when I purchased it). Has a nice user interface and backlinks.
(FWIW: I'm not affiliated with UpNote; just a fan).
Yes, during the first year of development every update was free but I believe they told people that at one stage there would be paid plans but that exisintg users would be grandfathered in ... and that day came on January 7th, 2021 ... and I only discovered them 2 weeks later :(
The best way to see the differences is to scroll down the pricing page.
Personally I will not use Remnote as I'd be frustrated by the free plan's lack of:
Graph View & Editor
Aliases
Search Portals
Image Occlusion
Advanced Spacing Algorithms
PDF Uploads & Highlights
Templates
Expanded File Uploading
I missed the cut-off in January and now would need to pay $6 per month for all the features I'd want.
So hopefully you can live with the free plan - just thought I'd mention it.