For News Corp. (NWS), MySpace is the mistake that keeps on costing. It's bad enough that Murdoch's empire paid $500 million for the social networking platform shortly before Facebook knocked it from the premier spot in the social media beauty pageant, but now we also know that News Corp. has committed $350 million to office space for MySpace that will never be used.

News Corp is shelling out more than $1 million a month for 420,000 square feet in Playa Vista, near Los Angeles International Airport. The deal was signed in August 2008 by Peter Levinsohn, former president of the Fox Interactive Media Unit. At the time, he issued a chest-puffing memo claiming it was "the single biggest real-estate transaction in Los Angeles in the last 25 years." Fortunately, he didn't mix the word "genius" in there at all.

The Twitter ecosystem may be changing constantly, but most of that comes on the back of individual developers and outside companies. They beat on Twitter APIs to create new products that may win them glory, recognition or cash. Over the past month, though, Twitter itself has gotten into the game, releasing or announcing a handful of new features.

A new function for "retweeting" (echoing another's tweet to your own followers), changes to how trending topics are managed, and the ability to create lists are new tools intended to engage users ... on the Twitter.com website. Considered within the context of Twitter's changed terms of service this year, the upgrades may be part of a broader ad-based revenue plan.

Company attitudes toward social media sites vary. Some swing the doors wide open, allowing employees to tend to their Facebook farms and update Twitter statuses throughout the day. Others lock 'em down, keeping non-business site access to a minimum.

A recent study found that, in the United States, 77% of employees with Facebook accounts check in with the community from the office. And, the amount of time they're spending in this part of the online world is growing. In the United Kingdom, another study found that 57% log in regularly from work, costing their employers 40 minutes a day.

Philip Wicks, a consultant at Morse PLC, a technology research firm in London, "It isn't just something you can do for half an hour during a lunch break but all through the day and because of that, it has a huge impact because people aren't necessarily concentrating on what they should be doing during the day." He estimates that this translates to lost productivity of $2.25 billion a year.

It seems like the obvious move would be to block the sites, but William Beers of PricewaterhouseCoopers disagrees. "Instead of trying to shut it down, I think we should try to embrace these technologies, put in a nice policy that governs it and explain to users the risks related to it, provide some training and then see what business benefits we can have from it," he said.

Once upon a time, retailers measured success by the number of people walking by in the mall, how many entered the store, the percentage they spent, and basket size. Now, a world of zeroes and ones has changed their perspective entirely. Social media is expected to be the star during the coming holiday season, with retailers pushing Facebook, YouTube, and Twitter content to get in front of consumers and affect either online or in-store purchases. Smaller Christmas budgets are expected, so the fight is on to garner as large a share as possible of a shrinking pie.

Of course, nobody would come out and say, "Social media is nonsense, and I'm not getting anything for my investment." So, when the likes of Starbucks (NASDAQ: SBUX), JCPenney (NYSE: JCP), and Target (NYSE: TGT) say that social media is connecting them with their customers and leading to more effective campaigns and product launches, do take it with a grain of salt. What can't be ignored, however, is that they're committing more resources to social media marketing, even though it's still far too soon to tell if it will be effective.

Who needs venture capital money when you have litigation? Facebook was awarded $711 million in damages Thursday in an anti-spam case against Sanford Wallace, an internet marketer. The popular social networking platform went after Wallace for tapping its users' accounts without their permission and sending fake posts and messages.

Wallace has quite a reputation for spamming, having gained the nicknames "Spam King" and "Spamford" back in the 1990s, when he was good for up to 30 million spam e-mails a day.

Your e-mail account is a goldmine. Technology companies push hard to keep your data secure, but there are plenty of scumbags out there who always seem to find a new way to gain an edge over the guys in white hats. Phishers, in particular, are eager to find new ways to profit from your identity and information, and they're getting some new tricks.

Phishing scam activity was quiet at the beginning of this year, according to a report in USA Today, but these attacks surged 200% from May through September, says the X-Force team at IBM (NYSE: IBM). Webmail, social media and gaming accounts are their primary targets. E-mail access, in particular, is highly sought after, since they can be use to push out spam ... while bypassing filters.

These "virgin" e-mail accounts command top dollar: a digital criminal can pick up as much as $2 for a clean account from Microsoft (NASDAQ: MSFT) Windows Live, Google (NASDAQ: GOOG) Gmail, Yahoo (NASDAQ: YHOO) YahooMail or AOL (NYSE: TWX). This is more than twice the amount typically paid for a stolen credit card account, according to Fred Rica, principal in the security practice at PricewaterhouseCoopers. Many webmail users actually do half the criminals' job for them, with 33% using just one password online and 48% using only a handful.

It was still a good idea for News Corp. (NASDAQ: NWS) to buy MySpace.com over fours years ago for a little more than half a billion. The social media network still brings in decent ad revenues, even though it is out of the popular fad culture of social media. That space is now owned by Facebook and Twitter. But then MySpace CEO Owen Van Natta says that his company is "fundamentally different" than Facebook -- as in a special experience providing entertainment content -- those words could come back to haunt him.

As will words like "I really don't view Facebook as a competitor." While it's true that Facebook and MySpace go after two types of online social interaction, they are both vying for many of the same customers in a large crossover audience. Teens, 20-somethings, and others are very fickle and many use both social networks. The two may have different goals, but they are competitors.

Where do you tweet? When? More important, what's normal? Are you some kind of freak?

A recent Gadgetology study by Retrovo.com, a consumer electronics shopping site, seeks to ascertain where the line in the sand is in regards to social media use (and overuse). If you're 35 or younger, regular use of sites such as Twitter and Facebook is common (big shock, right?). It looks to Retrovo like a new addiction may be taking root.

Have you ever looked at your Yahoo! (NASDAQ: YHOO) Flickr account and thought, "Why am I doing this? I can just throw my pics up on Facebook"? If this has crossed your mind, you're not alone. In fact, many photo-sharing sites – Snapfish (NYSE: HPQ), Photobucket, Picasa (NASDAQ: GOOG) and Shutterfly, as well as Flickr – are asking the same questions. With the development and enhancement of photo management capabilities in major social networking websites, niche players need to find new ways to stay relevant.

The situation is still far from grim. Fed by traffic from their behemoth owners, the photo-sharing sites remain substantial forces, and they are currently home to more than 20 billion pictures. There's still plenty of interest in these environments ... which has been bolstered by specific features that make the likes of Flickr attractive to both professional photographers and amateur shooters. The ability to order prints and personalize portfolios, for example, still provides an edge over sites like Facebook and MySpace (NYSE: NEWS).

Nonetheless, the threats from the social networking space are quite real.

Best Buy Inc. (NYSE: BBY) is taking the world of social media by storm. Instead of relying on traditional marketing and communication methods, hundreds of Best Buy employees are chirping on Twitter.com to assist in technology advice. The retailer is becoming more transparent and communicative on its own online forums. And, it's producing video blogs to engage its consumers beyond the world of text.

What does all this add up to? As the last national big-box consumer electronics retailing chain left in the U.S., Best Buy's "community managers" will be speaking at the Engage! to explain why they are doing what they are doing. Best Buy's strategy here is to adopt the communication and networking arenas its existing and potential customers are already in -- and win more sales that way. Its "Twelpforce" effort of offering advice is just a start.

In the wake of Starbucks (NASDAQ: SBUX) stronger-than-expected earnings, I found an interesting article about a study published by wiki provider Wetpaint and the Altimeter Group. The study suggests that when a company/brand is more active with its consumers through social media (the likes of Facebook and Twitter), it is more likely that the company will have financial success. The study looked at a group of 100 companies from BusinessWeek's listing of the top 100 brands of 2008 and their activity on Facebook, Twitter, and the likes.

According to the study, the brands scoring the highest on the engagement scale saw 18% revenue growth in the past year. Those brands with the least engagement saw revenue decline 6%. Companies that were the most active were classified as "mavens," while the least active were called "wallflowers."

Mark to market is R.I.P. But that's good news. Sentiment is building in the punditosphere that unemployment has not yet peaked and might not peak until 2010. TechCrunch reports that not a single venture-backed company IPOd in first quarter and M&A transactions were down by half compared to a year ago. Twitter is the next MySpace, according to this post. Too many impostors, follower counting and other sad parallels.

Marketing is always difficult. Often, you need to experiment with a variety of approaches. And, of course, you need to measure things.

Obvious, huh?

Yet, when it comes to using social media like Twitter, Facebook and so on, it seems that many small businesses forgot to measure things.

Then again, if you read much of the how-to's on the topic, it does seem that social media is an elixir; that is, there is some type of magic that will create more business.

But, when I talk to business owners about the success of their social media, things get a bit fuzzy. Often, there are few tangible examples.

Over the past few years, there has been an explosion of social media – as well as many fundings. However, it hasn't been easy for social media platforms to standout.

But, as for Wetpaint, things have been moving nicely. In fact, the company has announced a $25 million venture round (in all, the company has raised $40 million). The investors include: DAG Ventures, Accel Partners, Trinity Ventures, and Frazier Technology Ventures.

Essentially, Wetpaint allows you to create your own social media site – with pictures, blogs, videos and so on. So far, there are more than one million sites – with about a half a billion words (keep in mind that the system is extremely easy to use).

More importantly, Wetpaint has had lots of success monetizing the traffic, which is no easy feat when dealing with user-generated content. Although, Wetpaint's pages are optimized for major search engines, allowing for cost-effective traffic. And now with much more money in the bank, there is likely to be a further push to get users to create many more sites.

Tom Taulli is the author of various books, including The Complete M&A Handbook and The Edgar Online Guide to Decoding Financial Statements. He also operates MergerBook.com.

No doubt, there are many shareholder activists. But with Eric Jackson -- who manages Ironfire Capital LLC -- he is a bit different. That is, he uses social media, like Google Inc (Nasdaq: GOOG)'s YouTube, to help with his campaigns against companies like Yahoo! Inc. (Nasdaq: YHOO) and Motorola, Inc. (NYSE: MOT).

Well, I recently had a chance to interview him:

Why did you setup your fund? What's your take on shareholder activism?

After last June's Yahoo! annual meeting, when they changed CEOs following a high "against" vote by shareholders towards the current board, several friends and supporters encouraged me to think about setting up a fund. Frankly, they and I were a little surprised what I had been able to accomplish owning only 96 shares of the company. Many people had told me it was a waste of time and I had no chance of gaining support for an alternate "Plan B" for Yahoo! But we showed that the quality of ideas matter more to other shareholders than the quantity of shares owned. My hard costs were negligible for the campaign: a $30 webcam and a couple of JetBlue tickets to California. Several people said: "You need to do this on a larger scale." Ironfire Capital will allow me to do that.