Unlike "The Field of Dreams" just building it will not make them come. You have to get traffic to your website to make any money or even to claim any fame.
How can you get that traffic?
- Organic SEO referrals
- Paid ad placement click through (CTR)
- Social media referrals
- Publicity referrals (reviews, mentions in well known media)
- Authority, paid and traded links
You need to define a traffic strategy (or strategies) before you can execute traffic tactics. Usually the strategies are plural and the tactics executed trial and error until you get a working combination.