Magento is a powerful new Opensource eCommerce platform. With a million downloads, strong developer community, and a rich feature set, it is set to become the de-facto standard for open source eCommerce platforms. It also offers an Enterprise Edition for enterprises that desire support and robustness. 

Inkriti offers multisite ecommerce solutions that leverage the Magento platform. 

Read our white paper on the Magento eCommerce platform. Also, Forrester Research has recently named Magento as an "Emerging Player to Watch" in its recent report.