Amazon's Simple DB

Amazon is amazing in its unique services targeted towards long tail ISV's and developers.
SDB(Simple DB) - Amazon's new addition to its existing staple of on-line services(SSS, SQS, EC2 and now SDB), Amazon now looks more complete in becoming a platform vendor for SaaS and web 2.0 companies. Also, through its pay per use model, Amazon is attracting companies whose business model is much aligned with utility. Amazon's platform looks more attractive than other PAAS vendors (platform as a service) due to the fact that Amazon's platform services are loosely coupled and people can consume what they need and pay according to the consumption, the pricing is also truly utility driven where you get charged separately for your storage needs, network traffic and processing needs, it cannot get better than this.