Lots of prototyping hacks for quick and easy board game prototypes:

https://shippboardgames.blogspot.com/2022/09/my-favorite-prototyping-hacks.html

Playtesting 101: everything you need to know to get started with testing out your board game design (video):

https://www.youtube.com/watch?v=WKd4WJi5VBI

Why you need to playtest your game both with other designers and with non-designers:

https://twitter.com/StoicHamster/status/1565355821395054592

Tips for someone who’s considering making their first board game ever—a Twitter board game design discussion:

https://twitter.com/ell_deck/status/1565338686992142336

How to make nice (but inexpensive) character standees for your board game prototype:

https://www.youtube.com/watch?v=6EKCBfnP1JI

What is Yomi? An in-depth discussion of how game designs can encourage the goal of “knowing your opponent” in players:

https://www.universityxp.com/blog/2022/8/30/what-is-yomi

5 ways to know when your board game is done:

https://boardgamedesigncourse.com/5-ways-to-know-when-your-game-is-done/

Notes on advances in licensing contracts—specific wording to watch out for:

https://twitter.com/KevinWilson42/status/1566140701603151872

How to make a sturdy, six-fold prototype game board (video):

https://www.youtube.com/watch?v=FLLoYeo6qNI

A quick overview of randomness in tabletop games—how different kinds of randomness feel to players (video):

https://www.youtube.com/watch?v=UsocTTR6nm0

A deep, two-part conversation about how different types of games portray history in different ways (video):

part 1: https://www.youtube.com/watch?v=8GmOZdC5fEI

part 2: https://www.youtube.com/watch?v=twm3s-QocKw

Thoughts on the value of distractions in making you better at creating games (video):

https://www.youtube.com/watch?v=8yC6F8sDYDU

Sell sheets: when to use them and tips for making them appealing to publishers (video):

https://www.youtube.com/watch?v=jIyP-rXXYcI

What one board game designer wishes he knew when he first started making games:

https://boardgamedesigncourse.com/what-i-wish-i-knew-about-board-game-design-8-years-ago/

Considering the relationship between a game’s “scope”—the range it covers—and its “resolution”—or level of detail:

https://shippboardgames.blogspot.com/2022/08/scope-and-resolution.html

Character creation: various ways board games let players build their own characters (video):

https://www.youtube.com/watch?v=bSMzZUJ4RNE

Considering games through the lens of economics and how that can shed light on what makes a decision interesting (video):

https://www.youtube.com/watch?v=rLcqQmCZ2f8

Endgame triggers: an overview of some of the various ways a game can come to an end:

https://tabletopgamesblog.com/2022/08/09/uncertain-death-end-game-triggers-topic-discussion/

What tools do you need in order to make your own board game? Surprisingly few to start out:

https://www.underdoggames.com/a/blog/how-to-make-a-board-game

A process for generating good ideas for your game designs, by making curiosity a habit, asking questions, and iterating:

https://shippboardgames.blogspot.com/2022/08/how-to-have-good-ideas.html