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THREAD The numbers are in. @bsky.app research sharing volumes vs X Formerly Twitter In March 2024, on most days, Bluesky hosts more posts linked to research published in 2025 than X. By quite a lot. Release the Kraken... #AcademicSky #HigherEd #Altmetrics 1/11

462 reposts1.2K likes

I know it is difficult for you to track Mastodon, but I find that the number of likes/reposts from my paper link posts tends to be higher than on Bluesky, despite having half the followers. The engagement there is high!

You might be coming to this thread without knowing who we are and what we do. Altmetric monitors and tracks how research papers (articles, datasets, sadly NOT the dank memes this account cranks out) are shared on the web. We look in News, blogs, Wiki pages, policy docs, and yes...social media 2/11

Since Twitter was bought, rebranded and its algorithm heavily reshaped, academia, and the people closely following academia have sought additional or replacement homes on other services. Bluesky, although coming later to the party than Mastodon, has won out as the de facto location. 3/11

As we noted at the time, the speed of the move by academic communities to new platforms was aided by the fact that the communities were already fully formed and Bluesky allows for the importing of posts, and therefore the old footprints from Twitter were not lost. bsky.app/profile/alt... 4/11

Altmetric@altmetric.com

Bluesky is benefitting from several parallel accelerants: 1) A microblog format is already recognisable to new users 2) Communities are arriving fully-formed from elsewhere. These groups formed on Twitter and beyond. 3) Users are in motivated migration from other platforms. And it shows.

Although X engagement with new publications is still strong and of quality, there’s a large body of “reposting” activity that seems largely focussed on a certain body of work: vaccine scepticism, MMR, autism, ivermectin, etc. To literally nobody's surprise. 5/11

Thank - interesting, but can you provide more explicit labels? (Fig 1 - vertical axis; Fig 2 & 3 - what are the num/denom for the %s, and which is BlueSky/X?) I’m struggling to interpret all this.