Kelly K.

Ravelry is a necessary resource for any knitter or crocheter. Information about every yarn and pattern in existence is listed and cross referenced with users' projects, stash, and library.
An independent designer can sell their patterns through Ravelry with the site taking only a tiny percentage, and only when the designer makes a certain $ amt in sales in that particular month.
There is also an extensive list of social groups one may or may not join, many based on other hobbies & interests, or offered by local yarn shops and other industry groups, to keep one in the loop and to offer a platform for respectful discussion. The owners are doing an excellent job of curbing hate speech against marginalized folks to make Ravelry's message boards a more pleasant space for all.