These are the curated tags I use most often on Tumblr, my primary blog since 2014 or so:
Animal friends | Animal intelligence | Birds | Cats | Crows | Cute animals | Cute baby animals | Dogs | Foxes | Kittens | Nature photography | Otters | Possums | Puppies | Raccoons | Squirrels | Tardigrades | Urban Wildlife | Wildlife
Ableism | Bad cops | Bigotry | Colonialism | Cops | Disgusting | Haters | Homophobia | Inequality | Intentional ignorance | Free speech | Meninism | Male tears | Oligarchy | Orwellian | The patriarchy | Privilege | Police | Police brutality | Police killings | Racism | Toxic masculinity | Transphobia | Tyranny
| Ancient Rome
Beautiful - lots under this tag!
Alien | Avatar: The Last Airbender | Big Hero 6 | Black Widow | Blade Runner | Brooklyn Nine Nine | Carl Sagan | Cosmos | Cowboy Bebop | Due South | Dune | The Fifth Element | Frankenstein | Futurama | Galaxy Quest | Ghostbusters | Hamilton | Harry Potter | The Hobbit | How to Train Your Dragon | Jupiter Ascending | Kingsman | Leverage | The Martian | Neil deGrasse Tyson | Pacific Rim (with Drift compatible) | Lilo and Stitch | Lord of the Rings | LOTR | Mad Max Fury Road | Mad Max | Parks and Recreation | Peggy Carter | Star Trek | Steven Colbert | Star Trek: The Next Generation | Star Trek: The Original Series | Star Wars | Supernatural | Wonder Woman | Zootopia
The Galactic Adventures of Jack & Stella - my YA SF novel!
Apollo | Apollo program | Astronauts | Cassini | Chang'e | Hubble | Curiosity rover | Juno spacecraft | ISS (International Space Station) | Mars rovers | NASA | Near Earth asteroids | New Horizons | The Space Age | SpaceX | Spirit Rover
(awesome writer friend) | Gods of New Asgard
Teaching - about the career, plus lots of stuff for my various classes!
Academia | Assignments | Education | Grades | Grading | Mentoring | Science Fiction & the Popular Media class | Science Technology & Society class | Science Technology Society class | Teaching jobs | Writing workshop
Writing - not just about my own writing:
Book giveaways | Books | Ebooks | The Galactic Adventures of Jack & Stella (my YA SF novel) | Literature | My writing | Notebooks | Poetry | Short stories | Stories from a Perilous Youth (my memoir) |
Writing tips - a big section! Just about every day, I find something useful for writers and tag it "writing tips." Here are a few tags I use most often in addition to the general tag:
There are more, but this is good enough for now. I'll keep updating this list and my profile page as I realize I left stuff out. I'd love it if everyone did this!
These are the main tags I've used on LiveJournal, my primary blog from the 1990s until its relative collapse a few years ago:
UPDATED MARCH 16, 2019. CHECK BACK FOR UPDATES.