It's definitely the age of specialization. There are online stores focusing on all sorts of specific needs. Taps4Less.com is a perfect example. As the name suggests, Taps4Less is all about providing taps for bathroom tubs, showers and sinks (they also do kitchens). It's the perfect example of how to "do specialization right."
Taps4Less features a clean design and an absolutely amazing array of products. From designer taps to minimalist and traditional looks, they seem to have any plumbing tap a person could possibly want.
Taps4Less does handle other related products, but their focus is clearly on taps. By wrangling a great assortment of taps and making them easy to review and compare, they represent a perfect example of how to handle a specialized business online. Kudos to the tap people!