Not at FOSS4G.. no worries, enjoy the Visible Tweet stream below (Flash required)… A reminder that the popular FOSS4G Open Source Software conference is taking place in Denver, CO. You can catch the social updates via the Twitter hashtag #FOSS4G – see also YouTube, Flickr for updates via the tag FOSS4G2011. The Official FOSS4G website can be found at http://2011.foss4g.org –