Whilst I'm sitting here browsing the net from my unprotected Win2003 Server as my main pc is going through a reformat as I lost my temper with it I've been using Google Earth (..almost a haiku that) and visiting places of serenity around the globe. 90% I especially like how I can find my old house in Dublin and fishing spots I'd go to as a kid around Howth, Dun Laoghaire and Skerries ... ahh fantastic nostalgic value this software. 95% Takes my mind off how I have to reinstall everything again.
I'd strongly advize avoiding all Google software besides the search engine and maybe gmail. Google has been very sloppy about security in alot of their products. (Google desktop is particularly bad)