The CryptoNote.org website doesn't seem to have been updated since 2015. Their support forum is broken (I don't receive confirmation emails allowing me to register) and their twitter account has not been updated in a while. I know that Monero is based on CryptoNote which implies CryptoNote is not dead but why hasn't the CryptoNote.org website been updated or forum working?
Whilst Monero is based on CryptoNote, the codebase and feature-set is now very different.
The CryptoNote website and code repository has not been updated in a long time.
So whilst the website and code has not been updated, for historical purposes, I guess it's nice they are still online, even though not maintained.
Arguably the most active development on privacy focused, decentralized and fungible digital money is happening on Monero, with a wealth of information updated regularly on multiple channels.