This interview with social media expert Ben Wills discusses the growing role of social media in business.

This is a video of an interview with technology expert David Spark, founder of Spark Media Solutions, a new media consulting company.

Twitter--the messaging service that lets you send instant, short updates to people around the world--is fast becoming a mainstream communication tool.In this webcast, Sarah Milstein shows how to use Twitter and other micro-messaging services at work. She covers the the benefits and challenges of this exciting new medium, along with best practices and potential pitfalls you can avoid.

This 8-slide, illustrated presentation covers the basics of Skype, a VoIP.

When Jonathan Fields spotted William Shatner (left) waiting to board a JetBlue flight at New York's JFK in May, he did what any other self-respecting blogger would do. He popped open his Apple (AAPL) Mac, connected to the Web using the free Wi-Fi provided by JetBlue, and used Twitter to share the sighting with pals.

"JetBlue terminal," Fields wrote on the blog service that lets users send short messages of 140 characters with status updates to groups of friends. "William Shatner waiting in pinstripe suit and shades to board flight to Burbank. Why's he flying JetBlue? Free, maybe?"

But he was caught off guard by what happened next. Within 10 seconds he got an e-mail informing him that JetBlue (JBLU) was following him on Twitter.

This 13-slide, illustrated presentation covers ten ways to promote a business with social media: (1) Viral media, (2) Community, (3) Following your rail, (4) Optimizing your content, (5) Becoming an expert, (6) Aggregating information, (7) Engaging with your customers, (8) Breaking news, (9) Building identity, and (10) Arranging events.

This 8-slide presentation answers these questions:

What is Digg?
What can Digg be used for?
How can you join Digg?

This research proves conclusively that social media is coming to the business world at a faster rate than many anticipated. It also indicates that corporate familiarity and usage of social media is racing far ahead of what many have predicted.

Before he ran for president Barack Obama quit smoking. Now that he's won the job, he may have to break another addiction: Checking his BlackBerry for e-mail.

The president's e-mail can be subpoenaed by Congress and courts and may be subject to public records laws, so if a president doesn't want his e-mail public, he shouldn't e-mail, experts said. And there may be security issues about carrying around trackable cell phones.