At the time of the keyword research, I used the Google keyword planner for my keyword research. It does the job, even though it is slow for intensive keyword research. For the Long Tail Pro users,, I think the Keyword Competitiveness (the “KC”) number was about 32 – 34 back in July for the primary keyword. The KC is higher the last time I checked about 34 – 36. (I do use Long Tail Pro now. I highly recommend it since it’s the standard tool for keyword research. Click here for a free trial via this affiliate link.)
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.
Affiliate marketing overlaps with other Internet marketing methods to some degree, because affiliates often use regular advertising methods. Those methods include organic search engine optimization (SEO), paid search engine marketing (PPC – Pay Per Click), e-mail marketing, content marketing, and (in some sense) display advertising. On the other hand, affiliates sometimes use less orthodox techniques, such as publishing reviews of products or services offered by a partner.