Magento is one of the most popular open source e-commerce platforms written in PHP. It provides full control over the content and functionality of the website, has flexible shopping cart system, one page checkout, layered navigation, best security and SEO features on the market. It is relatively fast. Magento was originally launched in the 2008. It is widely used by developers for an e-commerce websites. Magento CMS has like 10000 extensions (update: now ~1500) so we at magentoextensions.org created catalog and a rating of best extensions using our sophisticated mRank technology.
magento, extensions, plugins, modules, amasty, magestore, aheadworks