Keep it personal, short, and non-promotional. The subject line “{first name} — quick question” generally yields a 70%+ Open Rate after 3 touches (3 emails).

• Brainstorm topics that would be useful or interesting to your users
• Think of how that content intersects with your product
• Write down the search terms that your users would search to find this info
• Use Google's Keyword Planner
• Cross-reference with Google Trend...

Start by asking yourself a few questions:

• Set up an incentive program for selling each other's product
• Find a deal that makes sense for both parties
• One time payout: A lump sum of money is paid to the affiliate per conversion
• Recurring: If you have a subscription plan with your client, you pass a percentage o...