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Esri Geoportal Server

Esri Geoportal Server is a free open source product that enables discovery and use of geospatial resources including datasets, rasters, and Web services. It helps organizations manage and publish metadata for their geospatial resources to let users discover and connect to those resources. The Geoportal Server supports standards-based clearinghouse and metadata discovery applications.

Esri Geoportal Server is available on GitHub. It is a stand-alone product that does not require an ArcGIS for Server license. It was released under the Apache 2.0 license, which allows developers to freely customize and redistribute the software.

ArcGIS Editor for OpenStreetMap

ArcGIS Editor for OpenStreetMap is an ArcGIS add-on that allows ArcGIS users to download data from OpenStreetMap, store it locally in a geodatabase, and use the advanced editing environment of ArcGIS for Desktop 10 to create, modify, or delete data. Once the edits are complete, the changes can be posted back to OpenStreetMap and made available to the OpenStreetMap community. It was released under the Microsoft Public License (Ms-PL) and is available on CodePlex.

Esri ArcGIS Silverlight Toolkit

This project contains the source code and libraries for the Esri ArcGIS Silverlight Toolkit SDK. The library is an extension of the ArcGIS API for Microsoft Silverlight/WPF. Included are a number of controls, widgets, and tools that you can use to enhance your Web applications. It was released under the Microsoft Public License (Ms-PL) and is available on CodePlex.

ArcGIS API Lite for Flex

This is a new Open Source code project available from Esri on GitHub. It is built as a wrapper around the ArcGIS API for Flex. It is a simple API targeted at those who are new to GIS and/or Esri, enabling you to embed mapping capabilities into Flex projects.

Analyze your mapped data in creative ways with the ArcGIS Silverlight Toolkit.