If you promote someone else's product on your website/blog/newsletters:
1) How do you decide the profit split ratio?
2) How do you know when your partner makes a sale through you?
3) How will you get your commission (channel, time frame, etc) - and how will you ensure this?
I already did some research but couldn't really find the answers I was looking for. An agreement is probably the best way to go, but I'm still not sure about the best practical approach. Thank you very much for any tips and insights.