diff --git a/ModestMaps/Stamen.py b/ModestMaps/Stamen.py
index 11bc977..bc2f3ac 100644
--- a/ModestMaps/Stamen.py
+++ b/ModestMaps/Stamen.py
@@ -9,11 +9,31 @@
 
 >>> p = TerrainProvider()
 >>> p.getTileUrls(Coordinate(25322, 10507, 16)) #doctest: +ELLIPSIS
-('http://tile.stamen.com/terrain/16/10507/25322.png',)
+('http://tile.stamen.com/terrain/16/10507/25322.jpg',)
 
 >>> p = WatercolorProvider()
 >>> p.getTileUrls(Coordinate(25322, 10507, 16)) #doctest: +ELLIPSIS
-('http://tile.stamen.com/watercolor/16/10507/25322.png',)
+('http://tile.stamen.com/watercolor/16/10507/25322.jpg',)
+
+>>> p = TonerHybridProvider()
+>>> p.getTileUrls(Coordinate(25322, 10507, 16)) #doctest: +ELLIPSIS
+('http://tile.stamen.com/toner-hybrid/16/10507/25322.png',)
+
+>>> p = TonerLabelsProvider()
+>>> p.getTileUrls(Coordinate(25322, 10507, 16)) #doctest: +ELLIPSIS
+('http://tile.stamen.com/toner-labels/16/10507/25322.png',)
+
+>>> p = TonerLinesProvider()
+>>> p.getTileUrls(Coordinate(25322, 10507, 16)) #doctest: +ELLIPSIS
+('http://tile.stamen.com/toner-lines/16/10507/25322.png',)
+
+>>> p = TonerBackgroundProvider()
+>>> p.getTileUrls(Coordinate(25322, 10507, 16)) #doctest: +ELLIPSIS
+('http://tile.stamen.com/toner-background/16/10507/25322.png',)
+
+>>> p = TonerLiteProvider()
+>>> p.getTileUrls(Coordinate(25322, 10507, 16)) #doctest: +ELLIPSIS
+('http://tile.stamen.com/toner-lite/16/10507/25322.png',)
 """
 
 from math import pi
@@ -25,12 +45,13 @@
 import random, Tiles
 
 class BaseProvider(IMapProvider):
-    def __init__(self, style):
+    def __init__(self, style, tile_format='png'):
         # the spherical mercator world tile covers (-π, -π) to (π, π)
         t = deriveTransformation(-pi, pi, 0, 0, pi, pi, 1, 0, -pi, -pi, 0, 1)
         self.projection = MercatorProjection(0, t)
         
         self.style = style
+        self.tile_format = tile_format
 
     def tileWidth(self):
         return 256
@@ -40,7 +61,7 @@ def tileHeight(self):
 
     def getTileUrls(self, coordinate):
         zoom, column, row = coordinate.zoom, coordinate.column, coordinate.row
-        return ('http://tile.stamen.com/%s/%d/%d/%d.png' % (self.style, zoom, column, row),)
+        return ('http://tile.stamen.com/%s/%d/%d/%d.%s' % (self.style, zoom, column, row, self.tile_format),)
 
 class TonerProvider(BaseProvider):
     def __init__(self):
@@ -48,11 +69,31 @@ def __init__(self):
 
 class TerrainProvider(BaseProvider):
     def __init__(self):
-        BaseProvider.__init__(self, 'terrain')
+        BaseProvider.__init__(self, 'terrain', 'jpg')
 
 class WatercolorProvider(BaseProvider):
     def __init__(self):
-        BaseProvider.__init__(self, 'watercolor')
+        BaseProvider.__init__(self, 'watercolor', 'jpg')
+
+class TonerHybridProvider(BaseProvider):
+    def __init__(self):
+        BaseProvider.__init__(self, 'toner-hybrid', 'png')
+
+class TonerLabelsProvider(BaseProvider):
+    def __init__(self):
+        BaseProvider.__init__(self, 'toner-labels', 'png')
+
+class TonerLinesProvider(BaseProvider):
+    def __init__(self):
+        BaseProvider.__init__(self, 'toner-lines', 'png')
+
+class TonerBackgroundProvider(BaseProvider):
+    def __init__(self):
+        BaseProvider.__init__(self, 'toner-background', 'png')
+
+class TonerLiteProvider(BaseProvider):
+    def __init__(self):
+        BaseProvider.__init__(self, 'toner-lite', 'png')
 
 if __name__ == '__main__':
     import doctest