Three committees announced bids and qualified to be on the site selection ballot for the 73rd World Science Fiction Convention : The first contested Worldcon selection since the 2007 vote for the 2009 Worldcon site saw active campaigning and drew celebrity endorsements . Authors George R. R. Martin and Cory Doctorow publicly supported the Helsinki bid and encouraged their fans to vote while artist Phil Foglio declared his support for Spokane 's bid and artist Bob Eggleton declared his support for Orlando
2009 Worldcon
67th World Science Fiction Convention
73rd World Science Fiction Convention