The Bloomberg API provides free, unrestricted access to raw financial data on current market trades (either real-time or delayed), reference data on historical information, and records of intraday trading. This library allows OSX users to develop their API in Java. As part of their Open Market Data Initiative Bloomberg API libraries are offered under a "free-use" license, which allows unrestricted access to the interface's header files, documentation, and programming examples. Users should note that the OSX libraries are only compatible with OSX 10.7 and later, and can only be used with the Bloomberg Server API and B-Pipe data feed products (not the Desktop API).
PayPal has officially released PayPal X, its next generation platform that includes a variety of APIs and other resources for developers. Primarily aimed at allowing developers to embed payment processing in a wider array of applications and environments, this is a major expansion of PayPal's APIs.
Whether you've heard of it or not, Platform as a Service, or PaaS, is an emerging trend that is quickly giving way to thousands of mashups across the web and corporate Intranets. A new article in the E-Commerce Times entitled "The PaaS Era, Part 1: Everybody's Pounding Out Mashups" highlights the growth of mashups as web startups and established companies continue to open up their platforms to third party developers.
Cashboard appears to be a full featured and mature time-tracking and invoicing system. It’s been about 9 months since the company opened its system up with its Cashboard API in beta, which continues to this day. The customer testimonials are quite persuasive and could lead to removing that manual Excel spreadsheet approach from the equation. After all, we're much more web savvy, right?