Lightweight models and cost-effective scalability
All websites start off small and grow large due to popularity and demand, this is “Lightweight models and cost-effective scalability”. An excellent example of this is LinkedIn.
Leveraging the Long Tail
Have you ever gone to a store and looked around to see for cheap items? or maybe you’ve done many trips to several stores just to compare a single item and see which one will be a bargain?
Eric Bong's Blog 