Share and discover maps and data on diverse topics, and create custom maps.
Easily annotated and draw on Google maps, then export images, kml files, embed code, and more.
Google Fusion Tables
Cloud-based table and database tool with powerful mapping functionality built in.
"Google Earth combines satellite imagery, maps and the power of Google Search to put the world's geographic information at your fingertips." Site allows download of free version.
Free interactive mapping to street level.
Upload and visualize your data within minutes and share or
ESRI Story Maps
A selection of downloadable templates for creating online map applications that integrate interpretative content (photos, captions, links) with interactive map displays.
A complement to Wikipedia, is a new dimension to the global data commons that empowers a global user community to organize all knowledge about the world spatially and temporally.
"Easily add fast beautiful maps to your sites and apps."
Elevation Profile Map Tool
Uses ArcGIS Online elevation data and allows users to create a profile by drawing a line.
Mapping For Everyone
Various applications, including demographic data, for creating embeddable/linkable custom maps (ESRI).
"This app shows US demographic data summarized by ZIP Code boundaries, atop maps of other scale, with expandable charts showing data in additional ways." Includes several visualization tools, including charts, graphs, and population pyramids (ESRI).
Find and explore user-created online maps (ESRI). Contact Jeremy Donald (firstname.lastname@example.org) to obtain a login via the Trinity ESRI site license.
ArcGIS.com Map Viewer
Make maps to share on ArcGIS.com (ESRI).
Make basic annotations to an interactive map for save/export. Multiple basemap options (ESRI).
ArcGIS Explorer Online
An online map-maker which includes basemaps, a wide selection of searchable layers, query creation, and a presentation tool.
ArcGIS Explorer Download
A free, downloadable digital globe, compatible with GIS data formats and .kml files. Offers some tools for spatial analysis.
From USGS, "The Nation's Topographic Map for the 21st Century."