Text
Books
| Standard eBooks | Nicely formatted public domain books |
| Queer Liberation Library | Libby library that's open to anyone in the USA |
| Japan Foundation Library | Libby library that's open to anyone in the USA |
| Recommend Me a Book | Shows you a brief preview of a book, only revealing which book it is when you click a button. |
| Unconvered Ink | Another site for blind book previews. This one is kind of corporate and annoying? |
| Unglue It | |
| Digital Book Index | |
| Libgen | Wikipedia link used as working addresses change frequently |
| Anna's Archive | Wikipedia link used as working addresses change frequently |
| HathiTrust Digital Library | Old books and magazines |
| Project Gutenberg | |
| Trans Reads | |
| Reciprocard | Search engine for finding digital library cards you're eligible for |
| Nantucket Lit | |
| The Online Books Page | |
| Faded Page |
Dictionaries & Related
| One Look | Searches hundreds of E-E dictionaries at once. The search function is insanely powerful making this site really useful for word games |
| Stardict Dictionaries | A bit difficult to navigate but covers a bunch of different languages and language pairs |
| Wordnik | dictionary used by a lot of online word games |
| MDict Dictionaries for Goldendict | Extremely large collection of basically every possible language pair including monolinguals |
| Tip of My Tongue | Lets you search for words in unconventional ways |
| Green's Dictionary of Slang | Very high quality dictionary of English slang, including when the term originated |
| Rhyme Zone | Find you words and phrases that rhyme with your query |
| Rhymer | Another rhyming dictionary |
| Phrontistery | |
| 英辞郎 on the WEB | J-E dictionary aimed at JP speakers |
| The Jaded Network | J-E Sound effects. The site is disintegrating, but it's still usable |
| EPWing Dictionaries | |
| MDX Dictionaries | |
| Yomitan Dictionaries | |
| Yomitan Dictionaries | (Different Link) |
| Yomitan Dictionaries | (Different Link) |
| JP Onomatopoeias | Onomatopoeia dictionary that isn't actively falling apart at the seams |
| J-J Dicts Proton Drive | Several J-J dictionaries |
| 伏字検索○○○ | Helps decipher censored words |
Search Engines
| Springer Nature Link | Scientific research |
| Refseek | Academic references |
| Marginalia | Tries to surface non-commercial sites |
| Wiby | Searches a pool of curated sites rather than crawling |
| Worldcat | Searches library catalogs. Probably USA only? |
| Impersonal | Google search but with a fake personalization profile |
| Search Engines With Their Own Indexes | Overview of what search engines exist for general purpose usage |
| Ao3 Search Operators Cheatsheet | List of search operators that Ao3 has that you might not know about |
| Old'a Vista | Searches old archived homepages from Geocities and Angelfire |
| Trace.moe | Finds the anime a screenshot is from |
| Feedle | Searches RSS feeds |
| VHSearch | Neocities-only search engine. It's clearly at least partially powered by a custom google search, but it's cute and gave me useful and relevant results |
| Clew | Another small site focused engine |
| Openverse | Searches creative commons media |
Textbooks
Cheatsheets/Quick references
| ffmprovisr | ffmpeg |
| Oh shit, Git!?! | |
| strftime | Time formatting strings |
| Javascript Arrays |
other
| Textfiles.com | Internet history via archived text files |
| Remove Paywall | |
| Old Usenet | Replay of the first several years of Usenet. Starts a new cycle every year |
| Sci-hub | Wikipedia link |
| SciOp |