diff --git a/README.md b/README.md
index 57f36a8..e28f0ad 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,11 @@
 # Foursquare Feeds
 
-A python script that will generate an iCal (`.ics`) feed of your checkins on [Foursquare][4sq]/[Swarm][swarm]. If you set it up to save this file to a publicly-visible location on a webserver, and run the script regularly, you can subscribe to the feed in your favourite calendar application.
+A python script that will generate iCal (`.ics`) or KML files of your checkins on [Foursquare][4sq]/[Swarm][swarm].
+
+If you set it up to save the iCal file to a publicly-visible location on a webserver, and run the script regularly, you can subscribe to the feed in your favourite calendar application.
+
+A KML file can be loaded into a mapping application (such as Google Earth or
+Maps) to view the checkins on a map.
 
 Foursquare [used to have such feeds][feeds] but they've stopped working for me.
 [I wrote a bit about this.][blog]
@@ -93,7 +98,7 @@ Enter this in your `config.ini`.
 
 ## Run the script
 
-You're ready to go:
+Generate a `.ics` file:
 
     $ ./generate_feeds.py
 
@@ -104,6 +109,9 @@ If the file is generated in a location on your website that's publicly-visible,
 
 Note that the file might contain private checkins or information you don't want to be public. In which case, it's probably best to make the name of any such publicly-readable file very obscure.
 
+To generate a `.kml` file, see the `kind` option below.
+
+
 ### Script options
 
 #### `--all`
@@ -118,6 +126,18 @@ Depending on how many checkins you have you might only want to run it with
 `--all` the first time and, once that's imported into a calendar application,
 subsequently only fetch recent checkins.
 
+### `-k` or `--kind`
+
+By default the script generates an iCal `.ics` file. Or, use this option to
+specify an `.ics` file or a `.kml` file:
+
+```bash
+$ ./generate_feeds.py -k ics
+$ ./generate_feeds.py -k kml
+$ ./generate_feeds.py --kind=ics
+$ ./generate_feeds.py --kind=kml
+```
+
 #### `-v` or `--verbose`
 
 By default the script will only output text if something goes wrong. To get