Generate a geoRSS feed from a Google Maps MyMap "View in Google Earth" link.
What this means is that you can use a Google MyMap as somewhere to blog from.
To give an item a url, use something like:
To give the post a date, use a construct like:
date: February 7th, 2008
Pipe Web Address: http://pipes.yahoo.com/ouseful/mymapsblog