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Litnerd - The Pixar for education, reading program for K-5 schools
OpenCart - A free shopping cart system. OpenCart is an open source PHP-based online e-commerce solution.s
Pili Pop - Great language learning method for kids
PrestaShop - Create your online store with PrestaShop's free shopping cart software. Build an ecommerce website for free and start selling online with hundreds of powerful features.
Wikids - An encyclopedia that talks to your kids