GitHub - ClickHouse/ClickHouse: ClickHouse® is a free analytics DBMS for big data

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports in real-time.

Useful Links

Official website has a quick high-level overview of ClickHouse on the main page.
ClickHouse Cloud ClickHouse as a service, built by the creators and maintainers.
Tutorial shows how to set up and query a small ClickHouse cluster.
Documentation provides more in-depth information.
YouTube channel has a lot of content about ClickHouse in video format.
Slack and Telegram allow chatting with ClickHouse users in real-time.
Blog contains various ClickHouse-related articles, as well as announcements and reports about events.
Code Browser (Woboq) with syntax highlight and navigation.
Code Browser (github.dev) with syntax highlight, powered by github.dev.
Contacts can help to get your questions answered if there are any.

Recording available: v22.12 Release Webinar 22.12 is the ClickHouse Christmas release. There are plenty of gifts (a new JOIN algorithm among them) and we adopted something from MongoDB. Original creator, co-founder, and CTO of ClickHouse Alexey Milovidov will walk us through the highlights of the release.
ClickHouse Meetup at the CHEQ office in Tel Aviv - Jan 16 - We are very excited to be holding our next in-person ClickHouse meetup at the CHEQ office in Tel Aviv! Hear from CHEQ, ServiceNow and Contentsquare, as well as a deep dive presentation from ClickHouse CTO Alexey Milovidov. Join us for a fun evening of talks, food and discussion!
ClickHouse Meetup at Microsoft Office in Seattle - Jan 18 - Keep an eye on this space as we will be announcing speakers soon!