The Google Java SDK works across most of the Google APIs. It provides HTTP transport, error handling, authentication, JSON parsing, media download/upload, and batching. The library includes an OAuth 2.0 library with a consistent interface, XML and JSON data models that support any data schema with support for protocol buffers. Google Developers provides APIs, software development tools, and technical resources that allow communication with Google Services and their integration to other services. Google is a technology company that specializes in Internet-related services and products that includes online advertising technologies, search, cloud computing, software, and hardware.