I have been working on Google Earth for my project. It has been a fun and frustrating adventure. I can definitely see the value of Google Earth in the classroom. As I have playing around with the different tools I have been discovering the wealth of information that it actually provides. I have discovered within Google Earth is the moon view, which has videos, links, pictures.. .you name it, it has it!!! What a great resource. Have to remember this for next year!
I am still working through Google Earth and making a tour for my Inuit unit. I marked all my places on the map and then discovered the layer option which you can add photos and links. So needless to say, I am still exploring. I am hoping to create a movie of the tour if I can actually get to that point. If anyone has done a tour or knows how to add neat things to the tour please let me know. 
I have been experimenting with Google My Maps – I can identify with the work involved and frustrations. I wanted to add Voicethread links to make the tour more interactive and have a place for students to add thoughts. I could only get the link to work but wanted to embed the VoiceThread which seemed to work then didn’t (if that makes sense).
http://vanginneken.blogspot.com/2010/02/ec-google-maps-meets-voicethread.html
This would be an awesome way for kids to grasp the content. I think this sounds like a fantastic project!