Check out this informative and succinct video. It gives a great introduction and overview of unified communications, an area with big development occurring almost everyday.
The Author
Ben Kepes is an analyst, an entrepreneur, a commentator and a business adviser. His business interests include a diverse range of industries from manufacturing to property to technology. As a technology commentator he has a broad presence both in the traditional media and extensively online. Ben covers the convergance of technology, mobile, ubiquity and agility, all enabled by the Cloud. His areas of interest extend to enterprise software, software integration, financial/accounting software, platforms and infrastructure as well as articulating technology simply for everyday users. More on Ben
Interesting summary of UC. With the magnitude of the integration effort required, it would be helpful to see a prioritization so the that efforts are focused in the right manner. This is particularly true if you are a smaller company and have to determine the best use of your resources.