Twitter, Facebook keep soaring as Myspace slumps

Twitter use still exploding; Facebook easily maintains top social networking market share

While Myspace Inc.’s business took a huge slide in the U.S. over the past year, use of rival Twitter Inc.’s social network simply exploded as visits to the site in September increased by 1,170% compared to year-earlier figures, according a report released last week by Experian Hitwise, an Internet monitoring firm.

Twitter, the fourth most visited social networking site, grabbed 1.84% of the U.S. market among the top 155 social networking sites in September 2009. That’s a huge increase over the same month last year when the microblogging site only had 0.15% of the market, Experian Hitwise said.