Remember when packages like RPM were first introduced, and it was like, “cool, I don’t have to compile everything!” Then you were introduced to Red Hat’s version of DLL-Hell when the RPM couldn’t find some obsure library! Before YUM, rpmfind.net was sooo useful!
Oh sites like that are absolutely still useful! Especially for older distros or when you need a specific version that you can’t find for whatever reason.