Feature Request - Add a "Watch" button

[RandomFractals]

hah! see my wishlist here:

Notebooks discovery enhancements to consider

hashtags support to tag notebooks with specific topics Current global search feature is nice but it scans all the notes and pulls up unrelated notebooks at times. Allowing notebook authors to tag their notebooks could narrow those search results as your public library grows. Follow author option This could extend current notebook likes functionality to get email notifications on new published notebooks by the contributors you fancy, or just in browser notifications of their latest updates …

covers some of the items you’ve mentioned and more