Internet maps with total user interaction and information search & retrieval capability

Google Earth, Microsoft Virtual Earth and the multitude of mashups on the web have changed traditional GIS for the better, opening up all sorts of lower cost possibilities for interactive mapping on the web. Be sure to allow pop-ups within your browser.
 
The Simplest:

Fly through your town's historic sites, snowmobile trails, or zoning districts in 3-D using Google Earth.

Conversion of GIS data to KML files (points, lines or area data)

Cost: minimum charge of $75, typically under $200

Example: Utica Boilermaker Road Race

Utica Boilermaker screen shot

 

The most powerful :

 

Customized mapping and queries, aerial photos, additional functionality can be added as needed

Data layers, search/query, colors fully customizable, links to websites, ad display, directions

Cost: depends greatly on application complexity but typically between $500 and $3000, annual hosting varies depending on complexity and user activity level, annual maintenance based on actual hours required

Example 1: NY Snowmobile Trail Web Map and Tourism Site
interactive trail map with lodging, dining, dealers, gas, etc., covering the Southern Adirondack & Mohawk Valley regions

Example 2: City of Little Falls Viewer (municipality example)

Example 3: Chamber of Commerce

 

Chamber Commerce screen shot

Town Columbia screen shot

Explore NY screen shot