Site Sapiens 3.0 is an enterprise content management platform, which is destined, first of all, for the web-projects demanding of different information environments integration. Site Sapiens organizes data of distributed heterogeneous information networks and provides full-scale management of the data. Site Sapiens 3.0 contains own client/server SOAP API for collaboration with external resources. Data management interfaces of Site Sapiens have desktop applications features thanks to the embedded AJAX Framework, including such solutions as dynamic trees, grids, explorers etc. The architecture of Site Sapiens is designed for project needing high performance. Applications Site Sapiens 3.0 are web-services and they can be allocated with various servers for load balancing.