The Online Maps feature in ERES displays geographical data using high quality on-line maps made by Google and Open Street Maps. Online Maps provides street maps and satellite maps, spanning over the entire world. By using high quality satellite imagery, a very wide zoom range is possible, making it possible to display every imaginable area of the world. Online Maps are useful for displaying exact spots on the maps. These spots are called map points and they are marked with map markers. A powerful tool provided by ERES Online Maps is Geocoding. Geocoding can locate buildings/cities on map by knowing only their addresses. Usage of Online Maps is limited by Online Maps Terms of Service (To see the current version, visit Google Maps API Terms of Service, Open Street Maps API Terms of Service).

Online Maps can contain tooltips and drilldowns. Tooltips are small reports or charts which are displayed on mouse over a map marker. They display brief summary information related to the selected map point. Drilldowns are links to parameterized charts, reports or other maps that open when you click on a map marker. They are usually used to display more detailed information about the selected map point.

SVG Maps display data on SVG (Scalable Vector Graphics) maps. They differ from ERES Online Maps in two ways. First, SVG Maps work with geographical areas (e.g. a state is marked by the whole territory, not just by a point in the middle of the state). These areas can be colored according to set criteria. Second, the SVG Maps feature requires SVG images as the map source and do not use any online map source. The SVG Maps feature may be used to display spatial (non-geographic) and customized maps (e.g. maps of buildings, floor plans, mine maps, etc.).