Links to Other Sites

Some of these are fairly well-known, while others are hiddem gems.

Coding

Codecademy — Offers coding lessons in small bite-sized pieces.
CodePen — A coding program that lets you view your coding in real time.
HTML Cheat Sheet — Basically what it says on the tin; a quick cheat sheet for HTML tags, attributes, etc.
RV's JS/DHTML effects — Cursor effects for websites, Tumblr blogs, etc.
W3Schools — Dubbed the largest web developer site, lots of useful coding resources.

The 88x31 GIF Collection — A collection of over 3,000 88x31 buttons!
88x31 Web Button Maker - Make your own 88x31 button.
99GIF shop — A bunch of GIFs!
FreeBackgrounds.com — Lots of tiled backgrounds, categorized by theme.
GifCities — GIFs scraped from old GeoCities websites.
Mazeguy Smilies — Smilies for just about any situation, ranging from custom fonts to zodiac signs.

Annotations Restored — YouTube removed annotations in 2019; this extension restores them on pre-2019 videos.
Clickbait Remover for Youtube — Turns off custom thumbnails for YouTube videos, and reduces "clickbaity" capitalization in the titles.
Clippy Assistant — Brings back Clippy to travel with you on the web.
DeArrow — Replaces YouTube video titles with more accurate and less "senstationalist" titles.
Decentraleyes — Centralizes content to compliment other privacy add-ons.
DownThemAll — Downloads all available images on a webpage.
Fraidycat — Follow hundreds of people on different platforms, all on a single feed.
Privacy Badger — Blocks trackers.
Privacy Possum — Falsifies information that trackers may collect.
Return YouTube Dislike — Shows the number of dislikes a YouTube video has.
Shinigami Eyes — Highlights both anti-trans and trans-friendly accounts on multiple websites.
SponsorBlock — Skims over YouTube sponsors.
uBlock Origin — Fairly reliable adblocker. Can be turned on and off when needed.
uMatrix — Blocks a lot of unnecessary background scripts, but you'll need to adjust the strength.
Unhook — Hides recommended videos, comments, and other potential distractions on YouTube.

Dial Up Sound — Recreation of America Online's dial-up, with visuals and — of course — audio.
Feat. Jay-Z — Adds Jay-Z voice bits to any YouTube video.
JS KidPix — An online replica of KidPix.
Our World of Pixels — An infinite canvas that anyone can draw on.
Where's George? — Lets you track paper currency across the United States.
Where's Willy? — Canadian equivalent to the above site.

Raymundo 2112 — Generally posts about YouTube videos and Internet culture, and informative videos about Internet usage with kids.
Soleil — In-depth videos regarding Warrior Cats and its fandom.
Vampire Robot — "Slice-of-life" footage ranging in decades, likely intended for news stations.

Big Sky Drive-In — A drive-in theatre located in Wisconsin Dells. Still in business with a Web 1.0 website.
Furry Fandom Compendium — Useful directory for informational websites in the furry fandom.
How to Stay Safe in the Furry Fandom — A guide to staying safe in the furry fandom, and spotting signs of abuse.
Space Jam — The original Space Jam webpage, untouched since 1996.

(Pending)

Hey kids, this is advertising!