http://webbuildingnews.net/story.php?id=70 Major leadership changes Twitter renewed questions about its business prospects -- was the replacement of CEO Jack Dorsey by fellow co-founder Evan Williams a shuffling of deck chairs on the Titanic? But VC backers of the microblogging service interviewed by wired.com insisted they remain bullish, and Bijan Sabet, a general partner at Twitter backer Spark Capital, revealed that new revenue models ... Sat, 18 Oct 2008 09:56:04 PDT en