The social site Twitter is taking off in Japan as millions are “mumbling,” that’s the Japanes equivalent of tweeting. The service started up in 2008 and with the recent addition of mobile tweeting in Japan, it looks as if the trend is going to continue to increase. I think Twitter is actually a good tool for sharing little bursts of information that might not be right for a blog or Facebook post. For example, tweeting a link to an article on something you’re passionate about is a great way to utilize the site.