Check out Wikimapia! 
I've been addicted to
wikipedia for quite a while now. For those who don't know about it, it's sort of an open-source, freely available online encyclopedia.
I was surfing it the other day and found a really interesting link to this new project called
Wikimapia. It's a project which uses the Google Maps API and a Web 2.0 api to provide an editable map where users can add information. Think of it as a spatial wikipedia. Here's more
info on it.
I surfed over to some of the places we used to know back in Delhi and marked them/checked them out:
Our house in Noida
AFGJI - our school in india
DSOI - Defence Services Officers Institute where we spent many a friday afternoon after school swimming, eating pakoras, watching an outdoor movie and playing video games!
Safdarjung Airport - where dad used to work