Light a lamp anywhere in the world and share it with your Family and Friends, via eMail or Facebook. Simple?
This web-app uses Google Maps to allow users to search and find the address of the home where they wish to light a virtual diya in. Check it out over here!
You could also support a cause. There are various NGO’s that are supported here, so make sure you check it out. You can do that at nrimatters.com/diwali/ngo