ArcGIS Is a Complete Platform for Open Data | ArcNews

" ... many organizations are realizing that ArcGIS is an exhaustive solution for open data. When combined with the rest of Esri's mapping platform, it can be used to support business development, collaborate with other governments, and tell stories that really engage citizens. The data services already available in ArcGIS can be reused to share integrated, sustainable, and effective data with the public."