Astronomy
- http://fuckyeahnebulas.tumblr.com/
- http://cosmosscience.tumblr.com/
- http://galaxyshmalaxy.tumblr.com/
- http://itsfullofstars.tumblr.com/
- http://fuckyeahspace.tumblr.com/
- http://uraniaproject.tumblr.com/
Biology
- http://fuckyeahdevelopmentalbiology.tumblr.com/
- http://billydalto.tumblr.com/
- http://electricorchid.tumblr.com/
- http://geneticist.tumblr.com/
- http://fuckyeahmicrobiology.tumblr.com/
- http://microculture.tumblr.com/
Chemistry
Geology
- http://geologyrocks.tumblr.com/
- http://inlovewithgeosciences.tumblr.com/
- http://mineralia.tumblr.com/
- http://fuckyeahvolcanoes.tumblr.com/
Math
- http://blog.hiremebecauseimsmart.com/
- http://proofmathisbeautiful.tumblr.com/
- http://fuckyeahmath.tumblr.com/
Medicine
- http://white-coat.tumblr.com/
- http://fuckyeahmedicalstuff.tumblr.com/
- http://fuckyeahcardiovascularsystem.tumblr.com/
- http://orangus-hamstursaurus.tumblr.com/
- http://cranquis.tumblr.com
- http://malgosh.tumblr.com/
- http://www.ziyadnazem.info/
- http://iwannabetheverybest-medic.tumblr.com/
- http://tumblr.doctorswithoutborders.org/
- http://captain-nitrogen.tumblr.com/
- http://diagnostics.tumblr.com/
- http://articulomortis.tumblr.com/
- http://fuckyeahbiomedicina.tumblr.com/
Neuroscience
- http://fuckyeahnervoussystem.tumblr.com/
- http://neurolove.tumblr.com/
- http://houseofmind.tumblr.com/
Physics
Psychology
- http://psydoctor8.tumblr.com/
- http://unconsciouskoine.tumblr.com/
- http://psychotherapy.tumblr.com/
- http://fuckyeahpsychology.tumblr.com/
- http://mindovermatterzine.tumblr.com/
Miscellaneous
- http://jtotheizzoe.tumblr.com/
- http://clearscience.tumblr.com/
- http://mynerdism.tumblr.com/
- http://sciencenote.tumblr.com/
- http://jsacc001.tumblr.com/
- http://epistemophilia.tumblr.com/
- http://gradmom.tumblr.com/
- http://phdr.tumblr.com/
- http://roundthelab.tumblr.com/
- http://scienceisbeauty.tumblr.com/
- http://realcleverscience.tumblr.com/
- http://earthandspacequest.tumblr.com/
- http://smarterplanet.tumblr.com/
- http://ohscience.tumblr.com.
This is totally a personal (and obviously partial) list, but if you know some good science tumblr you can reply to this post and I’ll add.
