Zotero is great for organizing and annotating papers, keeping notes, and building bibliographies.

You can create libraries and sub libraries according to topic, and also create libraries for projects or reading lists. Can also create shared libraries, for your research team to share annotated papers.

Finally it can archive offline copies of web pages, which makes it useful for blog articles and other online resources that might vanish.

There's a little learning curve, but it's worth it if you find yourself juggling dozens of technical papers! Enjoy!

I use Emergent Mind[1] to keep track of new research published on ArXiv. You can bookmark articles once logged in. It's very useful for keeping track of articles, reading quick summaries, and following conversations on various social media.

[1]: https://www.emergentmind.com/papers/2404.09562

hijacking for a bit of shameless self promotion: if you're an obsidian user, I recently built a plugin that simplifies web pages, parses out metadata, and saves them to obsidian as markdown files: https://github.com/inhumantsar/slurp

arXiv comes through a bit ugly atm but it's high on my to-do list. I'm leveraging the library that Firefox uses for reader mode, so most sites come through quite well. A lot of my work right now is expanding their metadata support and fixing parser issues.

old-fashioned text files

Google Chrome has a built-in reading list (go open the 3-dotted menu at the top-right corner, then click on "Bookmarks and lists" -> "Reading list")