The internet is completely saturated with all kinds of content, especially when it comes to fashion. There are so many search engine style websites that have been popping up & allow you to search for a specific item or for hard-to-find designers.
Shopbop is an online boutique specializing in hard to find, high end designers. It was acquired by Amazon in 2006, and has continued to grow and has recieved recognition for its fashion forward ways by Vogue, Harper's Bazaar and Elle. While the site is great, I personally don't goto Shopbop because it only features designers with price tags too high for my college budget. However, I think its great to keep in mind for when you are looking for a one-of-a-kind piece for a special occassion.
Shop Style is actually formatted like Google. You can type in anything you want, and it will come up with a long list of products matching your search. From there you can refine your search through color, brand, price, sale & size. I found Shop Style to be more relevant to my shopping habits because it includes the high-end designers and more affordable options. There is even an app available in the iTunes Store. Since discovering it, I am kind of obsessed with it.
Zappos, an oldie but a goodie. Zappos has been around since 1999 and has grown into a national favorite when it comes to online shopping. It was built on the premise of customer service, and they certainly uphold to a very high standard. If you haven't shopped through Zappos you haven't lived! For whatever reason I always goto Zappos for shoe shopping, sometimes the prices will be a few bucks cheaper, and there is free shipping, its a win-win.
Maybe in the future there will be an actual Fashion Google, where all kinds of brands, companies and designers are represented in one search engine.