How do local boutiques compete with the Amazons of the world? The easy answer is they don't. When you shop for quality and design over cheap and easy, it's a different market entirely. But the popularity of online retail has created a need for boutiques to have a presence online. London startup Trouva is helping small boutiques open up their customer base to the global community. TechCrunch visited Aida to learn more about how the process works.