A few thoughts ... Hashtags are used to document events and 'trending topics' most often on Twitter and Delicious. You'll find detailed explanations on the Planeta wiki http://planeta.wikispaces.com/tags
The future of conferences - recommended listening: http://www.abc.net.au/rn/futuretense/stories/2009/2564798.htm - will most likely demand real-time, online interaction, starting with Twitter and Flickr. Here are some of the tourism and eco events I'm paying attention to this week, all documented online Twitter COP 15 http://twitter.com/#search?q=%23COP15 Conde Nast Traveler World Savers Congress http://twitter.com/#search?q=%23CNT09 Marketing Now Conference http://twitter.com/#search?q=%23mktgnow Responsible Tourism Conference (Belize) http://twitter.com/#search?q=%23rtbelize09 Editing Web 2.0 Strategies for Visitors and Locals (and everyone in between) http://planeta.wikispaces.com/web2 Kind regards, Ron Mader >> http://www.planeta.com