My interest lies less in observing, more in expanding my imagination and appreciation of space and our place in it.
a multimedia gallery of 400,000 pictures from NASA - excellent.
Further pictures from the Space Shuttle also by NASA.
Pictures of the planets by NASA.
The difficulty with pictures is the time they take to download, so I prefer books. I have enjoyed several from the section in Woking Library (labelled AST), especially
The Snows of Olympus by Arthur C. Clarke (London, 1994), on how Mars might be colonized and terraformed in the coming centuries. I find him an interesting author.
Patrick Moore's books, including Observing with Binoculars, and the Astronomy Encyclopaedia he edited in 1987; more modern versions should be available by now.
The accounts of the meteor that smashed into Jupiter in the early 90s, and of the Supernova in the Large Magellanic Cloud in 1987 were most interesting.
Did you know that there may be water ice on the moon, in the very deep craters near the South Pole? According to a channel 4 book I read published in 1999, an orbiting probe has detected glinting from the bottom of the craters, and less radiation than elsewhere on the moon's surface. Perhaps it is water ice, from cometary impacts through time. Most would evaporate, but the temperature down there is perhaps too low for amy molecules that fell in to evaporate. We could use it for breathing and rocket fuel. However, it may not be water at all according to Patrick Moore. Why are there still no humans exploring the moon's surface? I can't understand it. Perhaps it's the cost. Now I hear there's water on Mars, frozen below the surface...