ToastyStats: Fandom statistical analyses

Fandom Stats: master post

I’ve gotten a ton of new followers lately; figured it was time for a master list of my fandom stats analyses. Please read the FAQ for answers, explanations, and caveats!
SHIPPING AND RELATIONSHIP CATEGORIES
What are the most common ‘ships on AO3?
It’s not just you — there’s a lot of slash on AO3
Why is there so little femslash?
Which fandoms have the most femslash on AO3?
AUs (ALTERNATE UNIVERSES)
How much AU fic is out there, and are there patterns in which fandoms produce the most?
All about the Omegaverse AU
OTHER CROSS-FANDOM ANALYSES
Basic breakdown of AO3 categories — this was my first stats post. I’ve updated several of these analyses since the initial post — please don’t take the graphs on this one too seriously, and read all the fine print! :)
Major archive warnings
The most common fandoms on AO3
Completion rates: not as bad as you think
Are longer fics more popular?
Popularity metrics on AO3 — a case study that I’ll be expanding on (this is just me noodling about the meaning of various metrics with my own fanfic as an example)
SHERLOCKIAN ANALYSES
So just how slashy is the Sherlock fandom on AO3?
How has shipping changed over time in the Sherlock fandom?
How does shipping in the Sherlock fandom vary across platforms (AO3 vs. FFNet vs. Tumblr)?
Holmes/Watson shipping in different adaptations
How has the Sherlock fandom changed over time (in terms of fanfic quantity and type)?
How did the Sherlock and Elementary fanfic activity levels compare for the first 9 months of each show?
FUTURE WORK
I keep a list of analyses & updates I hope to do in a Google Spreadsheet (feel free to take a peek). I always welcome other suggestions!
META RESOURCES
permanent master list — I try to keep this updated with all my analyses and other people’s fandom stats.
toastystats blog — just my stats posts without all the other stuff I post here. :)
FAQ — answers, explanations, and caveats — let me know if you have questions that aren’t answered here!
Fanlore article — I’ve been (slowly) helping to contribute to a Fanlore article on Fandom Stats about these kinds of analyses. You can read more about methods, goals, and limitations there.
MEDIA COVERAGE
Unpacking the unofficial fandom census (The Daily Dot)
A brief history of slash (The Toast)
Three Patch Podcast, episode 7: discussion of my Sherlock slash stats @ 2:40:30
Three Patch Podcast, episode 9: discussion of my AU analysis @ 2:44:50