(I did not put much effort in this, and am unlikely to fix errors. Please fork the list if you want something higher quality. Used only public data to make this.)
https://www.yudkowsky.net
https://gwern.net/
https://kajsotala.fi
https://www.astralcodexten.com
http://www.weidai.com/
https://lukemuehlhauser.com
https://www.mccaughan.org.uk/g/
https://vladimirslepnev.me
https://sethaherd.com
https://jimrandomh.tumblr.com
https://muckrack.com/thane-ruthenis/articles
https://ailabwatch.substack.com/
https://www.lsusr.com
https://theeffortlessway.com
https://www.cognitiverevolution.ai/mind-hacked-by-ai-a-cautionary-tale-from-a-lesswrong-users-confession/
http://zackmdavis.net/blog/
https://benjaminrosshoffman.com
https://acesounderglass.com/
https://www.benkuhn.net/
https://benlandautaylor.com/
https://thezvi.wordpress.com/
https://eukaryotewritesblog.wordpress.com/
https://flightfromperfection.com/
https://meteuphoric.wordpress.com/
https://srconstantin.wordpress.com/
https://sideways-view.com/
https://rationalconspiracy.com/
http://unremediatedgender.space/
https://unstableontology.com/
https://sjbyrnes.com/agi.html
https://sites.google.com/view/afdago/home
https://paulfchristiano.com
https://paisri.org/
https://katjagrace.com
https://blog.ai-futures.org/p/our-first-project-ai-2027
https://www.mariushobbhahn.com/aboutme/
http://rootsofprogress.org/
https://www.bhauth.com/
https://turntrout.com/research
https://www.jefftk.com
https://virissimo.info/documents/resume.html
https://bmk.sh
https://metr.org/
https://kennaway.org.uk
http://1a3orn.com/
https://acritch.com
https://lironshapira.substack.com
https://coral-research.org
https://substack.com/@theojaffee
https://matthewbarnett.substack.com/
https://www.beren.io/
https://www.cold-takes.com
https://newsletter.safe.ai
https://www.metaculus.com/accounts/profile/116023/
https://www.patreon.com/profile/creators?u=132372822
https://medium.com/inside-the-simulation
https://www.lesswrong.com/users/unexpectedvalues?from=search_page
http://markxu.com/about
https://www.overcomingbias.com
https://www.vox.com/authors/miranda-dixon-luinenburg
https://www.getkratom.com
https://github.com/YairHalberstadt
https://www.scott.garrabrant.com
https://arundelo.com
http://unstableontology.com/
https://mealsquares.com/pages/our-team
https://evhub.github.io
https://formethods.substack.com/
https://www.nosetgauge.com
https://substack.com/@euginenier
https://drethelin.com
https://entersingularity.wordpress.com
https://doofmedia.com
https://mindingourway.com/about/
https://jacquesthibodeau.com
https://www.neelnanda.io/about
https://niplav.site/index.html
https://jsteinhardt.stat.berkeley.edu
https://www.jessehoogland.com
http://therisingsea.org
https://www.stafforini.com/
https://acsresearch.org
https://elityre.com
https://www.barnes.page/
https://peterbarnett.org/
https://joshuafox.com/
https://itskatydee.com/
https://ethanperez.net/
https://owainevans.github.io/
https://chrislakin.blog/
https://colewyeth.com/
https://www.admonymous.co/ryankidd44
https://ninapanickssery.substack.com/
https://joecarlsmith.com
http://coinlist.co/
https://davidmanheim.com
https://github.com/SarahNibs
https://malmesbury.substack.com
https://www.admonymous.co/rafaelharth
https://dynomight.net/
http://nepenthegame.com/
https://github.com/RDearnaley
https://graehl.org
https://nikolajurkovic.com
https://www.julianmorrison.com
https://avturchin.livejournal.com
https://www.perfectlynormal.co.uk
https://www.250bpm.com
https://www.youtube.com/@TsviBT
https://adamjermyn.com
https://www.elilifland.com/
https://zhd.dev
https://ollij.fi
https://arthurconmy.github.io/about/
https://www.youtube.com/@RationalAnimations/featured
https://cims.nyu.edu/~sbowman/
https://crsegerie.github.io/
https://escapingflatland.substack.com/
https://qchu.wordpress.com
https://dtch1997.github.io/
https://math.berkeley.edu/~vaintrob/
https://mutualunderstanding.substack.com
https://longerramblings.substack.com
https://peterwildeford.substack.com
https://juliawise.net
https://uli.rocks/about/
https://stephencasper.com/
https://engineeringideas.substack.com/
https://homosabiens.substack.com
https://martin-soto.com/
https://www.tracingwoodgrains.com
https://www.brendanlong.com
https://foresight.org/fellowship/2024-fellow-bogdan-ionut-cirstea/
https://davekasten.substack.com
https://datapacrat.com
http://admonymous.co/nat_m
https://mesaoptimizer.com/
https://ae.studio/team
https://davidad.org
https://heimersheim.eu
https://nunosempere.com/
https://www.thinkingmuchbetter.com/nickai/
http://kilobug.free.fr/code/
http://vkrakovna.wordpress.com/
https://www.conjecture.dev/
https://ejenner.com
https://morphenius.substack.com/
https://gradual-disempowerment.ai
https://www.clubhouse.com/@patrissimo
https://mattmacdermott.com
https://knightcolumbia.org
https://www.openphilanthropy.org/about/team/lukas-finnveden/
Update: Many of these have now been added to https://searchmysite.net/search/browse/
Scrape of many lesswrong blogs
(I did not put much effort in this, and am unlikely to fix errors. Please fork the list if you want something higher quality. Used only public data to make this.)
https://www.yudkowsky.net
https://gwern.net/
https://kajsotala.fi
https://www.astralcodexten.com
http://www.weidai.com/
https://lukemuehlhauser.com
https://www.mccaughan.org.uk/g/
https://vladimirslepnev.me
https://sethaherd.com
https://jimrandomh.tumblr.com
https://muckrack.com/thane-ruthenis/articles
https://ailabwatch.substack.com/
https://www.lsusr.com
https://theeffortlessway.com
https://www.cognitiverevolution.ai/mind-hacked-by-ai-a-cautionary-tale-from-a-lesswrong-users-confession/
http://zackmdavis.net/blog/
https://benjaminrosshoffman.com
https://acesounderglass.com/
https://www.benkuhn.net/
https://benlandautaylor.com/
https://thezvi.wordpress.com/
https://eukaryotewritesblog.wordpress.com/
https://flightfromperfection.com/
https://meteuphoric.wordpress.com/
https://srconstantin.wordpress.com/
https://sideways-view.com/
https://rationalconspiracy.com/
http://unremediatedgender.space/
https://unstableontology.com/
https://sjbyrnes.com/agi.html
https://sites.google.com/view/afdago/home
https://paulfchristiano.com
https://paisri.org/
https://katjagrace.com
https://blog.ai-futures.org/p/our-first-project-ai-2027
https://www.mariushobbhahn.com/aboutme/
http://rootsofprogress.org/
https://www.bhauth.com/
https://turntrout.com/research
https://www.jefftk.com
https://virissimo.info/documents/resume.html
https://bmk.sh
https://metr.org/
https://kennaway.org.uk
http://1a3orn.com/
https://acritch.com
https://lironshapira.substack.com
https://coral-research.org
https://substack.com/@theojaffee
https://matthewbarnett.substack.com/
https://www.beren.io/
https://www.cold-takes.com
https://newsletter.safe.ai
https://www.metaculus.com/accounts/profile/116023/
https://www.patreon.com/profile/creators?u=132372822
https://medium.com/inside-the-simulation
https://www.lesswrong.com/users/unexpectedvalues?from=search_page
http://markxu.com/about
https://www.overcomingbias.com
https://www.vox.com/authors/miranda-dixon-luinenburg
https://www.getkratom.com
https://github.com/YairHalberstadt
https://www.scott.garrabrant.com
https://arundelo.com
http://unstableontology.com/
https://mealsquares.com/pages/our-team
https://evhub.github.io
https://formethods.substack.com/
https://www.nosetgauge.com
https://substack.com/@euginenier
https://drethelin.com
https://entersingularity.wordpress.com
https://doofmedia.com
https://mindingourway.com/about/
https://jacquesthibodeau.com
https://www.neelnanda.io/about
https://niplav.site/index.html
https://jsteinhardt.stat.berkeley.edu
https://www.jessehoogland.com
http://therisingsea.org
https://www.stafforini.com/
https://acsresearch.org
https://elityre.com
https://www.barnes.page/
https://peterbarnett.org/
https://joshuafox.com/
https://itskatydee.com/
https://ethanperez.net/
https://owainevans.github.io/
https://chrislakin.blog/
https://colewyeth.com/
https://www.admonymous.co/ryankidd44
https://ninapanickssery.substack.com/
https://joecarlsmith.com
http://coinlist.co/
https://davidmanheim.com
https://github.com/SarahNibs
https://malmesbury.substack.com
https://www.admonymous.co/rafaelharth
https://dynomight.net/
http://nepenthegame.com/
https://github.com/RDearnaley
https://graehl.org
https://nikolajurkovic.com
https://www.julianmorrison.com
https://avturchin.livejournal.com
https://www.perfectlynormal.co.uk
https://www.250bpm.com
https://www.youtube.com/@TsviBT
https://adamjermyn.com
https://www.elilifland.com/
https://zhd.dev
https://ollij.fi
https://arthurconmy.github.io/about/
https://www.youtube.com/@RationalAnimations/featured
https://cims.nyu.edu/~sbowman/
https://crsegerie.github.io/
https://escapingflatland.substack.com/
https://qchu.wordpress.com
https://dtch1997.github.io/
https://math.berkeley.edu/~vaintrob/
https://mutualunderstanding.substack.com
https://longerramblings.substack.com
https://peterwildeford.substack.com
https://juliawise.net
https://uli.rocks/about/
https://stephencasper.com/
https://engineeringideas.substack.com/
https://homosabiens.substack.com
https://martin-soto.com/
https://www.tracingwoodgrains.com
https://www.brendanlong.com
https://foresight.org/fellowship/2024-fellow-bogdan-ionut-cirstea/
https://davekasten.substack.com
https://datapacrat.com
http://admonymous.co/nat_m
https://mesaoptimizer.com/
https://ae.studio/team
https://davidad.org
https://heimersheim.eu
https://nunosempere.com/
https://www.thinkingmuchbetter.com/nickai/
http://kilobug.free.fr/code/
http://vkrakovna.wordpress.com/
https://www.conjecture.dev/
https://ejenner.com
https://morphenius.substack.com/
https://gradual-disempowerment.ai
https://www.clubhouse.com/@patrissimo
https://mattmacdermott.com
https://knightcolumbia.org
https://www.openphilanthropy.org/about/team/lukas-finnveden/
Update: Many of these have now been added to https://searchmysite.net/search/browse/