Everytime I look at negotiation practice advice, it's always 'practice in your day to day conversations', which I don't really do and can't imagine is super useful.
So I built an easy platform for people to practice this critical skill by themselves or with others.
Please feel free to try it and give me feedback, I'm all ears. :)
communitrain.com is the platform, btw. I'm having a lot of fun with the IndieHackers interface as you can tell!