The Open Observatory of Network Interference (OONI) monitors network-level blocking of internet access, usually by governments or ISPs.
OONI also develop FOSS tools for carrying out this monitoring.
You can follow at:
Their website is at https://ooni.org
This is a brand new server run by the main developers of the project as a spin-off of mastodon.social It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!