|Why They're Hot:
Formerly reusablebags.com, the e-commerce site sells reusable bags, bottles and containers and offers tips for cleaning, reusing products and general "green earth" lifestyle suggestions. The site lets shoppers browse by ratings, style, product materials, country of origin and even what disposable items the buyer wants to replace. Select product pages include videos demonstrating how products work and how they protect the environment. In keeping with its message, the site's home page features three call-to-action tabs at the top: Learn More, which describes materials used in many common products and issues with disposables; Do It Yourself, where consumers can find out how to reduce waste by recycling and reusing products; and Get Involved, with tips on how to become active in "green" campaigns.