I would love to see a lighting online retailer such as http://www.bulbs.com/ in India. Five reasons why it would do well are:
1) Hardly any dissemination of lighting knowledge from bulb manufacturers to consumers.
2) Hardly any online store that sells bulbs.
3) Huge customer base (business customers) who would like to benefit from choice and price.
4) Huge energy wastage due to lack of awareness of energy-efficient bulbs and therefore savings on electricity costs.
5) One-stop place for all varieties of bulbs.