Cool list! Some of these are new to me, will have to explore further.
Here’s some more:
Wolfram|Alpha - https://www.wolframalpha.com/
Internet Archive - https://archive.org/
WWW Virtual Library - http://vlib.org/
Scholarpedia - http://www.scholarpedia.org/article/Main_Page
Library Genesis - https://libgen.unblocked.ltda/
And some databases...
WordNet (English) - https://wordnet.princeton.edu/
BabelNet (Multilingual) - https://babelnet.org/
Dimensioned drawings/standard measurements—https://www.dimensions.guide/
Aaand some maths stuff...
MathPages—https://www.mathpages.com/
MetaMath (Proofs from scratch) - http://us.metamath.org/index.html
The On-Line Encyclopedia of Integer Sequences—https://oeis.org/
I’m similarly open to criticisms, haven’t explored all of these thoroughly but they’ve all caught my eye over the years for one reason or another.
Cool list! Some of these are new to me, will have to explore further.
Here’s some more:
Wolfram|Alpha - https://www.wolframalpha.com/
Internet Archive - https://archive.org/
WWW Virtual Library - http://vlib.org/
Scholarpedia - http://www.scholarpedia.org/article/Main_Page
Library Genesis - https://libgen.unblocked.ltda/
And some databases...
WordNet (English) - https://wordnet.princeton.edu/
BabelNet (Multilingual) - https://babelnet.org/
Dimensioned drawings/standard measurements—https://www.dimensions.guide/
Aaand some maths stuff...
MathPages—https://www.mathpages.com/
MetaMath (Proofs from scratch) - http://us.metamath.org/index.html
The On-Line Encyclopedia of Integer Sequences—https://oeis.org/
I’m similarly open to criticisms, haven’t explored all of these thoroughly but they’ve all caught my eye over the years for one reason or another.