ArcMap extension: Data And Maps Sidebar v1.6

Automatically retrieves data for your current Arcmap work frame from the following online sources

DATA WAREHOUSES:
USGS Seamless Data Distribution System (SDDS)
USDA Geospatial Gateway
NOAA Coastal LIDAR Data Retrieval Tool
USGS Geologic Map Database (Digital Only)br />
USGS Geologic Map Database (Paper Only)
ESRI Geography Network
U.S. Census Gazetteer
Harvard Geospatial Library
Free Boating Charts

MAP SITES:
Google Maps
Yahoo Maps
Microsoft Live Local
Mapquest
Multimap
National Geographic MapMachine
MapTech (Topos + Nautical & Aeronautical Charts)
Trails.com Topo Finder