A niche interest appeals only to a small number of people.

针对特定小群体的吸引性事物只对一小部分人有吸引力。

With the advent of individualized, or rather social, media people can now form social environments that congregate around niche interests.

随着个性化媒体，更确切地说是社交媒体的出现，人们现在可以打造出聚合利基兴趣的社会环境（利基兴趣，在这里可以理解成是" 小众兴趣" ）。

Those with more niche interests could pick " Sell the Grand Canyon" , " Let's Buy Machine Guns From Vending Machines" or " Re-Legalize Khat" .

那些追求更多利基利益的人可以选择“卖掉大峡谷”、“让我们从自动售货机购买机枪”或“重新合法化阿拉伯茶”。