Last month I wrote an article about enterprises being ill-equipped to block Web 2.0 threats. But here's one I hadn't considered; your company being impersonated on Twitter.

According to an article this week in the Wall Street Journal (subscription required to view full article online), some companies are suffering from imposters who open accounts at the microblogging site with a user name that sounds similar to the target company's name, and then tweet about that company. 

The next time you're stumped trying to solve a problem at work, stop thinking about it. According to today's Wall Street Journal, your brain works hardest when you're not aware of it. That is, go ahead and let your mind wander.

A number of psychologists and neuroscientists in the U.S. and the U.K. have done research that shows a wandering mind works harder than a focused one. From the Journal:

According to a recent Wall Street Journal article, the British government has come up with a plan to deter online music and movie pirating by simply restricting Internet access of repeat offenders.

The plan goes something like this: ISPs would be required to send letters of warning to those subscribers suspected of illegally downloading content. For repeat offenders, ISPs would have to report the user information of the suspected pirates to the owner of the pirated content, so that party can threaten legal action.