some fandom events

flashexchanges is hosting a hAPPy birthday exchange, to celebrate the one year anniversary of the AO3 app. Sign-ups and noms will close tonight (the 18th) at 10:30 PM EDT.

launchtheship, a multifandom challenge to write the first fic for a ship, has open sign-ups, which will continue on until the end of the round in October. More details are here.

ficinabox, a 10k challenge where you have the option to split your 10k into as many works as you want (including various forms of requested media), is accepting nominations until August 20th, 11:59PM EDT.

npdfest is a Non-Penetrative Dominance Fest, which is a multi-fandom fanweek exploring themes of domination and submission, specifically through scenes which do not involve penetrative sex. Prompt submissions are ongoing until August 20th.

yesfest, a multifandom fic/art exchange focused on consensual sex, has opened sign-ups until August 24, 9PM PDT.

8words is hosting a 8 Word Prompt Fest, which is centered around 8 randomly generated words. Prompts can be submitted until August 27th, 11:59PM UTC, and fills can be made until the end of August.