When using the Google’s My Maps feature you can display multiple maps at once simply by ticking the boxes, however the ‘Link to this Map’ will only ever include 1 map, so you can’t easily send a group of maps to someone.
… So a new script – this time under the gokml.net banner – for creating a ‘container’ KML that simply opens a bunch of maps at once – this KML is openabe in Google Earth, but also you can share the link so others can see your batch of My Maps at once in Google Maps.
As a total aside I notice My Maps, now sport a (Geo)RSS feed 
[...] nearby.org.uk blog GIS, maps, mapping, geo, UK, Geograph, PHP, Perl and more –: Visit nearby.org.uk Homepage :– © Barry Hunter 2007, blog content Creative Commons Licenced unless specified « My Maps Container [...]
You have done wonderfil work here which SHOULD have been done by Google! One question. I am trying to create a Google Gadget of my maps according to your instructions. Everything works well EXCEPT I cannot get a height above 200 no matter what I change in the code generated. Is this a preset limit or am I missing something? Thanks again.