America’s top CEOs appear to be mostly absent from the social media community, with only two of 2009’s Fortune-100 CEOs have Twitter accounts, none have personal blogs, 13 have LinkedIn profiles and only 19 have a personal Facebook page. These results point to a “miserable” level of engagement among top execs, who “appear to be disconnected from the way their own customers are communicating” and are “giving the impression that they’re disconnected, disengaged and disinterested, according to a new study by UberCEO.

For the first time in four years, a new city claims the title as the worst in the U.S. for road rage. New York has unseated Miami as the least courteous city. The Big Apple moved up from its No. 3 ranking last year to claim the distinction. Rounding out the five worst cities for road rage are Dallas/Fort Worth, Detroit, Atlanta and Minneapolis/St. Paul, according to a survey by AutoVantage. 2009 marks the first time in four years that another city replaces Miami as the least courteous, the survey found. The Big Apple moved down from its #3 least-courteous ranking last year, while Miami improved to 7th least courteous.

Worldwide social virtual worlds are expected to have 23% compounded annual growth rate (CAGR) from 2009-2015. The fastest growing demographic, represented by kids between the ages of 5 and 9, shows a 27% CAGR; however, the largest segment is for tweens and teens, which is experiencing a 21% growth. Future predicts show that virtual worlds will continue to improve the user experience and will convert registrations to active users at a 38% CAGR through 2015, according to a new study by Strategy Analytics.

While Blu-ray was declared the big “winner” in the high definition format war last year, consumers may be slow to be part of the winning team. In fact, Americans are not jumping on board with any of the high definition DVD players. Just one in ten Americans (11%) own a HD DVD player while 7% own a Blu-ray player. Looking at the other devices for playing HD DVDs, 9% own a Sony PlayStation3 (which plays Blu-ray ) and 3% have the external HD DVD drive for the Xbox 360 (which plays HD DVDs). While slow to catch on, ownership of all these high definition disc players is up from May 2008. Interestingly, while Blu-ray was the clear “format war” winner over HD DVD, sales of HD DVD players (11% in 2009 vs. 6% in 2008) are up over 2008 by about the same margin as Blu-ray players (7% in 2009 vs. 4% in 2008). Both were rivaled by the Sony PlayStation3 (9% vs. 5%). However, only 3% purchased the external HD DVD drive for the Xbox 360, up from 1% in 2008. There is no expected surge of interest pending -- only 7% of non-Blu-ray player owners report a likely purchase of a Blu-ray disc player within the next year, down from 9% in May 2008, according to a study by Harris Interactive.