Update wording

README.md

@@ -1,6 +1,11 @@
 # MBUtil
 
-MBUtil is a utility for importing and exporting the [MBTiles](http://mbtiles.org/) format.
+MBUtil is a utility for importing and exporting the [MBTiles](http://mbtiles.org/) format,
+typically created with [MapBox](http://mapbox.com/) [TileMill](http://mapbox.com/tilemill/).
+
+Before exporting tiles to disk, see if there's a [MapBox Hosting plan](http://mapbox.com/plans/)
+or an open source [MBTiles server implementation](https://github.com/mapbox/mbtiles-spec/wiki/Implementations)
+that works for you - tiles on disk are notoriously difficult to manage.
 
 ## Installation
 
@@ -53,6 +58,14 @@ and run
 
     nosetests
 
+## See Also
+
+* [node-mbtiles provides mbpipe](https://github.com/mapbox/node-mbtiles/wiki/Post-processing-MBTiles-with-MBPipe), a useful utility.
+
+## License
+
+BSD - see LICENSE.md
+
 ## Authors
 
 - Tom MacWright (tmcw)