#blue is a web service to save text messages in an intelligent, searchable manner. It's a service of O2 UK, and sadly only currently available to O2 UK subscribers. However, it's a rather interesting web service, and it'd be great to see more service providers use a similar service. The fully functional #blue API provides a compliment to its web based service.
Business applications created on the Cloudfier platform inherently contain an API that grants full access to app functionality through the Cloudfier API. Cloudfier allows users to define a business centric solution with Cloudfier’s business programming language. After the solution is defined, the platform automatically creates a web application. Cloudfier was built on Elipse Orion and aims to move towards a new type of development.