The four main online outlets for David Bradley and Sciencebase updates are the Sciencebase website and blog, Facebook, Mastodon, Twitter, and Instagram. Most updates covering my science and stuff will appear in those places.
You can also find me as “sciencebase” on almost all other social media, this a link of this form, swapping out the word social for substack, medium, bandcamp, soundcloud, pixelfed, linkedin or whatever:
https://sciencebase.com/social