About finding and adding content
The map you work with in ArcGIS Explorer Online includes a basemap that provides background or contextual information for additional content you place on top. You can add content from several other sources to augment what the map conveys or provide the basis for understanding the place you are investigating more fully. This additional content can come from ArcGIS Online, GIS servers that are available on your local machine or network, or servers publicly available on the Internet.
Finding and adding content to a map
You can also add an existing service to ArcGIS Online so that it appears in My Content.
Adding services to your content in ArcGIS Online
If you have local data you want to add to a map, you can import this to ArcGIS Online and add it to your map.
Learn more about importing content to ArcGIS Online
Finding and adding content to a map
You can add layers based on web services to
your map in the following ways, using the Add Content button 
:
- Search ArcGIS Online and the web
- Browse the services of a GIS Server
- Browse the services that you've added to ArcGIS Online
Tip:Watch the short video about Working with ArcGIS Server data
You can also add editable layers to your map, and create your own data that is stored in the map.
Adding existing services to your content in ArcGIS Online
You can also add references to existing web mapping services to your content in ArcGIS Online. This allows you to easily access the services from within the My Content sections of the home screen and Add Content drop-down panel. It also allows you to share the information easily with other users and groups, along with pop-up windows you have configured for the service, and also layer appearance you have configured for feature services.
How do I add a service?
You can add a reference to an existing service from the Add Service button, shown in the Services view of My Content in the home screen.
Learn more about adding a service to your content in ArcGIS Online
What kind of services can I add?
You can add references to existing ArcGIS Server map, image, and feature services, KML, and also Open Geospatial Consortium (OGC) WMS services.