Corda.com

Features:

Produces images in Macromedia® FLASH, SVG, PNG, JPEG, PDF, EPS, TIFF, WBMP
Integrates easily with any web application server
No proprietary browser plug-ins required
Works with almost any data source
API options: Java,.COM,.Net
Made for rapid deployment
100% JAVA
Generates maps that are truly 508 Compliant
Zip codes and U.S. Congressional Districts are available
Ability to contain a variety of map images fed with on-demand dynamic data
Creates text boxes, callout notes or popup text that appears on map
Drill-down capabilities such as linking to other maps
Map layering allows users to create customized maps that combine and/or divide geographic areas.