Maps & Visualization
Data visualization maps, built on various platforms:
Google Maps + Vector overlays
Google GeoCharts
Leaflet + TileMill / Wax
Leaflet + TileMill / Wax + Vector overlays
Leaflet + CloudMade + Vector overlays
Modest Maps + TileMill / Wax
Open Layers + Vector overlays
Mapping / visualization utilities:
Polyline Encoding Utilities
Series Breaks