An organization of hobbyists who run an alternative DNS network, also provides access to domains not administered by ICANN.
A curated blocklist of known fake news sites, suitable for use with adblockers or other countermeasures.
An OSINT collection utility which gathers information about domains. Hunts for subdomains, searches SHODAN for hits, grabs banners and headers, web UI. Don't know if there's an API yet.
Enter an IP address, get a four little words-compatible hostname. Does the reverse, also.