Perhaps, the second step. I have started putting all the observatories onto one single Google map. Right now, you might be able to view Hanle and Kodaikanal on the Map given below:
View Larger Map
You can catch the updates as they happen on the map by subscribing to the RSS feed for this map or view it in Google Earth. I think this is more fun to watch the updates than a plain old spread sheet (RSS feed for spreadsheet). But, it's your pick.