SplitThis thread lists resources and contains discussion related to the researching and purchasing of computer mice. For general discussion or help you can not easily locate, please feel free to comment here.
Communities and Further Resources:
Mice Using Flawless Sensors
Outdated. May still be of use for comparing some older, popular mice.
GeekHack Mouse Guide
Mouse Sensor List
Outdated but extensive listing.
Overclock Recommended Mousepads
The /r/MouseReviews Discord server is probably a really good community as well.
Some more links for people interested: