From Astronomy.com:
Hubble's camera will make a high-resolution image revealing new details about the object that receives the most votes.
NASA is giving everyone the opportunity to use the world's most celebrated telescope to explore the heavens and boldly look where the Hubble Space Telescope has never looked before.
NASA is inviting the public to vote for one of six astronomical objects for Hubble to observe in honor of the International Year of Astronomy. The options, which Hubble has not previously photographed, range from far-flung galaxies to dying stars. Votes can be cast until March 1, 2009. Hubble's camera will make a high-resolution image revealing new details about the object that receives the most votes. The image will be released during the International Year of Astronomy's "100 Hours of Astronomy" from April 2-5, 2009.
Space enthusiasts can cast their vote at: http://YouDecide.Hubblesite.org
Everyone who votes also will be entered into a random drawing to receive one of 100 copies of the Hubble photograph made of the winning celestial body.