The Best Buy Developer site offers tutorials to work with Products, an API that provides REST protocol to access product's pricing, availability, and images. The tutorials are under the how to's category and the topics include search for products based on description, search based on review criteria, and search based on a list of attribute values. Keyword search is also available. Something to consider, Best Buy product information is updated close to real time with the goal to facilitate product search for developers and consumers.
APIs are giving more leverage to small independent players. Whether it’s a single developer, or a small web development team, each quality API that is produced gives them another leg up. There is a wonderful varied ecosystem emerging here with many highly specified niche players. TinyPay.me is one such player, offering e-commerce services with focus on simplicity and product placement. The TinyPay.me API gives developers a unique online storefront option.