Some experiments with Google Maps:
Custom maps, custom controls, point-in-polygon and geocoding
Click anywhere in the US to get county information and outline.
A combination of points along a route and server side clustering. Search for healthy food along your travel route. ;-)

(Hosted at my new domain, gis5.com)
Several custom controls for your maps. (MMapTypeControl - MOpacityControl - MZoomControl - MStatusControl - MTileNumberControl)
This is similar to the custom maps in the Main Map, except that each custom tile layer is added to the map as a GTileLayerOverlay, allowing for each layer to be switched on and off independently.
Written in PHP, and with a MySQL database, this server side clustering script returns results in less than 0.1 second from a table with 40,000 records.
Slightly different version, (with numbered markers), here
A heatmap showing the density of fast food restaurants in the United States
Search the SIMBAD Astronomical Database, (operated at CDS, Strasbourg, France), and display results using Google Sky tiles. The Andromeda Galaxy is quite spectacular, isn't it? :-)
A game like mashup where you're given the outline of a random state and you have to move it into place by dragging.
Implements a trick to drag entire polygons without setting the polygon into edit mode.
Driving directions using the GDirections object. (With custom styling of results)
Plot a graph of math functions on a Google Map with Euclidean projection
A tool to draw a selection area in the shape of a polygon. The selection can be either a rectangle or a circle.
Get driving directions and then find the points of interest that lie within a predefined distance of your route in the state of Texas.
Using a single GDirections object, plot routes that reach 30 miles from a center point
This is a circle on the surface of the planet. At larger radii, the effects of the Mercator projection become clearly visible.
Just click around and see the distance travelled for each segment on the right.
Click the map two or more times to create polylines. Distance from mouse to each line is calculated in pixels
Click the the marker and the 'Location' tab
Bunch of maps synchronized between them (useless)
Bunch of maps synchronized between them (still useless)
Upload a track file from a Magellan Explorist GPS and see it plotted on the map.
Show/hide map and resize
This was made before the GDirections object became available in the API. It gets the directions in a KML file that you can save on your server
A toy I made for fun. Animated radar screen with polylines.
Resize the map's viewport by miles or kilometers.
Click 1, click 2 and see the flight path an aircraft would follow
  • Mouse Wheel Zoom (Obsolete)
  • Control the map zoom with your mouse wheel.