Places to promote your board game online:

http://pixygamesuk.blogspot.com/2016/07/the-marketing-guide-links-to-market.html

A game designer's convention packing list:

http://www.leagueofgamemakers.com/a-game-designers-convention-packing-list/

10 ways to market your board game:

http://pixygamesuk.blogspot.com/2016/07/the-marketing-guide-10-ways-to-market.html

How to get people interested in playtesting your game--a Reddit tabletop game designers forum discussion:

https://www.reddit.com/r/tabletopgamedesign/comments/4twj4c/how_to_get_people_interested_in_playtesting_your/

A lengthy glossary of tabletop game mechanics:

https://www.reddit.com/r/tabletopgamedesign/comments/4tu27t/tabletop_game_mechanic_list/

Tips for recording the audio of playtesters' feedback:

http://www.leagueofgamemakers.com/taking-audio-feedback/

When to introduce your game to the world--a BoardGameGeek designers forum discussion:

https://boardgamegeek.com/thread/1606181/how-and-when-do-you-introduce-your-game-world

5 tips for a productive playtest session: 

http://boardgamegeek.com/thread/1606803/5-tips-productive-play-testing-session

Solo testing and getting your gaming group to play your prototype (video)

Getting a job in the board game industry (video)

What makes choices interesting or uninteresting:

http://makethemplay.com/index.php/2016/07/14/creating-interesting-choices-in-your-board-game/

Three types of game development sessions:

http://hyperbolegames.com/2016/07/13/three-development-sessions/

Hippodice Game Designer Competition 2017

Deadline: Oct. 20, 2016

http://www.hippodice.de/index.php/awb-en/awbrules-en

Getting your game on Tabletop Simulator:

http://www.3dtotalgames.com/getting-game-tabletop-simulator/

Tips for using components from existing board games for your prototypes (audio):

https://www.buzzsprout.com/48513/399766-episode-18-harvesting-games

Notes on shipping and fulfillment for a Kickstarter board game:

http://stonemaiergames.com/shipping-innovations-by-level99-games/

5 lessons about game development from working on SeaFall:

http://www.leagueofgamemakers.com/five-things-i-learned-while-developing-seafall/

Advice for creating an AI opponent in a solo variant:

https://oakleafgames.wordpress.com/2016/07/07/lessons-from-designing-a-solo-variant/

14 ways of reducing analysis paralysis:

http://makethemplay.com/index.php/2016/07/07/14-ways-of-reducing-analysis-paralysis-in-your-board-game/

Decision-first game design:

http://jtreat.tumblr.com/post/147004505072/decision-first-game-design