Google is really crazy lately.
They are buying internet companies left and right (most notably YouTube) and providing some of the best services (Gmail, This Blog, Google Analyst, Google Documents etc.) I've seen and mostly for free.
Companies like Microsoft and lately also Nokia (which in it's new organizational structure also plans to become an internet company) will have a fair challenge catching up with the superb quality and seamless integration Google has in it's products.
Most of you probably know of Google Earth, which is fun and great.
But in fact the browser based Google Maps is better in my opinion. It's more robust and allows for easier sharing of maps and a much better search function.
Here, a map I made: MyJAPAN
見てみな!(クリック!)