“Kickstarter tip 2987: Know how you’re using social media. Don’t launch thinking you’ll post in a few FB groups. Have a plan. You don’t need a ton of money, but know where you’re posting, when, and what you’re going to say. Use pics and directives. Be excited! Planning = success.”
— AnnaMaria Jackson-Phelps
“Getting a game design from 95% to 100% done takes as long as it does to get from 0% to 95% done.”
— Brian Henk

Board game media creators discuss how designers and publishers can work with them most effectively (video)

Lots of advice for playtesting, and its importance to the game design process (video):

https://www.youtube.com/watch?v=qBezywgh2yM