Not sure if this is the right place for this sort of thing, but I stumbled on this and thought it was a really useful resource. I was trying to search for a router bit that I could picture in my head, but had no idea what the name was, or how to search for it.

https://www.toolstoday.com/t-routerbitglossary

It's basically a photo glossary of anything and everything related to router bits - great for matching up a name to a profile, but also gives a pretty good overview of what kind of specialty bits are out there, and some basic woodworking terminology.