In celebration of Hubble's 25th Anniversary, here are some websites about the space telescope
Hubble25th.org (http://hubble25th.org/)
HubbleSite.org (http://hubblesite.org/)
Hubble at NASA (http://www.nasa.gov/hubble)
Hubble at ESA (http://www.spacetelescope.org/)
HST's history from conception (http://hubble25th.org/history/)
Presentations & eBooks (http://hubble25th.org/resources/7#categories_bar)
A Quarter-Century of Discovery with the Hubble Space Telescope (http://imgsrc.hubblesite.org/h25/upload ... Hubble.pdf)
Hubble: An Overview of the Space Telescope (http://imgsrc.hubblesite.org/h25/upload ... erfect.pdf)
NASA Servicing Mission Media Reference Guides
Corrective Optics Space Telescope Axial Replacement (COSTAR) (http://asd.gsfc.nasa.gov/archive/hubble ... COSTAR.pdf)
Servicing Mission 2 (http://asd.gsfc.nasa.gov/archive/hubble ... aGuide.pdf)
Servicing Mission 3A (http://asd.gsfc.nasa.gov/archive/hubble ... aGuide.pdf)
Servicing Mission 3B (http://asd.gsfc.nasa.gov/archive/hubble ... posite.pdf)
Servicing Mission 4 (http://www.nasa.gov/pdf/327688main_09_S ... e_rev1.pdf)