Microsoft has released a significantly enhanced version of their Live Search API. Live Search API 2.0 offers increased flexibility in terms of API protocols (REST/XML and JSON are now offered, in addition to the original SOAP interface), new tools, sample code, and complete documentation.
In the beginning, there was the Google (SOAP) Search API. In December 2006, Google no longer issued any new keys for this API. Those with keys already could still use the API, but it was effectively deprecated.
On April 12th, Microsoft announced that:
"the Bing Search API will transition to...the Windows Azure Marketplace," they later added that the service will "move to a monthly subscription model."
So what does this mean for developers?