Communications of the ACM

The Communications Web site, http://cacm.acm.org, features more than a dozen bloggers in the BLOG@CACM community. In each issue of Communications, we'll publish selected posts or excerpts.

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Optical information handling is a critical staple for communications and the Internet, but using light for computer-scale computation remains a distant dream.

Dynamically typed languages adopt features of static typing to cope with growth.

Scientists are using cutting-edge scanning and visualization techniques to wow visitors and find new stories in ancient artifacts.

Speculating on how the Bitcoin economy might evolve.

Considering existing and new types of risks inherent in cloud services.

What do you do when your debugger fails you?

Some hidden costs of outsourcing.

Higher education institutions must modify their business models in response to technology-driven influences.

Assessing the accuracy of popular descriptions of Alan Turing's influences and legacy.

Public, verifiable, append-only logs.

Assessing legal and technical solutions to secure HTTPS.

Routing security incidents can still slip past deployed security defenses.

Use this map query interface to search the world, even when not sure what information you seek.

This collaboratively edited knowledgebase provides a common source of data for Wikipedia, and everyone else.

New abstractions are critical for achieving SDN goals.

Combinatorial search problems are usually described by a collection of possible states, a list of possible actions which map each current state into some next state, and a pair of initial and final states. The algorithmic problem is to find a sequence ...

From the intersection of computational science and technological speculation, with boundaries limited only by our ability to imagine what could be. When machines are in the natural world, what in the world is still unnatural?