So I notice a lot of niche sites that go something like "small-electric-canopeners.com", and they are about 10 pages built for just that. Does having such a narrow theme for their site help their SEO, versus having a general site about kitchenware? So lets say I have three keywords I want to rank for. 1. Steel Forks 2. Battery Powered Rice Cookers 3. Portable Refrigerators Would building three separate sites 10 pages long all focused on those specific keywords help those sites rank, versus having just one 30 page site on kitchenware? What are the benefits/disadvantages? Why wouldn't we just build one massive website on everything?