Ebates is a fan favorite. Even though they have been around for years, a lot of people still aren't using it. And it's easy money. Who doesn't love that? Because it crosses so many industries, it can be an easy program to promote. Even if you aren't in the save money/make money industries, if you are talking about your organizing your office or trip to Jamaica it's an easy mention. “Don't forget to stop by Ebates first to get 8% back on your The Container Store purchase” or “Get 12% back this week when you book your Hilton stay through Ebates.” Bonus points: Ebates gives people an extra $10 when they sign up and make their first purchase. And you get $15! (Plus bonuses.)
As an affiliate for Boatbookings, you will receive 20% of their revenue - effectively meaning your commission will be about 4% of any sales from your referrals. You also receive 10% of any commissions Boatbookings make on repeat customers who were your referrals. They do have a minimum charter value of 3,000 ($/€/£/etc) before commissions are earned.