My brother pointed me to a firefox extension that does this, but here's one for all browsers: loc.alize.this is a tool embeds a google map directly into your flickr page on a photo, enabling you to search for and click on a map spot; then it geotags your photo with latitude and longitude for display on maps.
For the next step, when I figure out how to load geotagged photos on google earth and google maps for full display, i'll lay it all out.
technorati tags:google, maps, flickr, geotagging, mashup, firefox, extension