In reply to: https://lordmatt.co.uk/technology/the-internet/all-the-active-sites-using-webmention-that-i-found-so-far-march-2024/

Awesome! Here's a few more good sources: indiemap, a 2017 crawl of over 2300 sites. The indieweb.org chat names is a self-selecting list of community members and links to their sites. Not all of them support Webmention, but a good portion of them probably do. The wiki also has an examples section. And don't forget me! :)