Geocommons support.

http://geocommons.com is a massive resource for open geospatial data. It would be neat to include support for this:

* It's run by ESRI, who are big in the GIS world and tend to create long lasting standards (Such as shapefile)

* Seems to contain a good deal more useful data than ikimaps, data is creative commons licensed. (Example, I'm able to find trails for national parks, etc)

* The data is available as KML.

* The API seems easy to implement:

1. [0][root@cylon]/2/earth> wget -qO- http://geocommons.com/search.json?model=overlay\&query=olympic+trails|js-beautify -i

2. {

3. "entries": [{

4. "icon_path": null,

5. "feature_count": 933,

6. "pk": 13611,

7. "type": "Overlay",

8. "layer_size": 4583102,

9. "title": "Olympic National Park Trails",

10. "short_classification": null,

11. "analyzable": true,

12. "data_type": "Dataset",

13. "is_temporal": null,

14. "link": "http://geocommons.com/overlays/13611.json",

15. "name": "Olympic National Park Trails",

16. "bbox": [47.5019, -124.732, 48.2752, -123.126],

17. "description": "This is a coverage of trails in Olympic National Park. Attributes include trail identification codes, names of the trails, description of linkages to other trails, the type of trail, and trail mileage.",

18. "permissions": {

19. "download": true,

20. "edit": false,

21. "view": true

22. },

23. "detail_link": "http://geocommons.com/overlays/13611",

24. "contributor": {

25. "uri": "http://geocommons.com/users/tyler",

26. "name": "tyler"

27. },

28. "published": "1997-03-06T07:00:00-05:00",

29. "created": "2009-06-18T01:20:57Z",

30. "author": {

31. "name": "",

32. "source": "United States National Parks Service"

33. },

34. "id": "overlay:13611",

35. "geometry_types": ["line"],

36. "tags": ["clallamcounty, nationalparks, nps, olympics, outdoors, trails, unitedstates, washington"],

37. "unique_name": null

38. }],

39. "totalResults": 1,

40. "itemsPerPage": 10

41. }

42. [0][root@cylon]/2/earth>

43. [0][root@cylon]/2/earth> wget -qO- http://geocommons.com/overlays/13611.kml |egrep -io '<placemark' |wc -l

44. 933

    [0][root@cylon]/2/earth>