|Why They're Hot:
Self-described as the happy union of Mother Nature and Father Internet, Abe's Market is a marketplace for sellers of eco-friendly goods. Although there is plenty to buy, fresh editorial content that is updated daily dominates the site's home page. "While commerce is a big part of what we do, we are very focused on the content we share," says Kimberley Grayson, chief revenue officer. Grayson says consumers pass on this content by e-mail or social media, and that translates into incremental traffic and sales. Additionally, product pages include icons that highlight product attributes, such as gluten-free, which are of interest to the site's shoppers. To increase transparency and encourage interaction, shoppers can ask manufacturers or sellers questions directly from the product page.