A couple of satellite-imagery links from Plep; I don’t think I’ve seen these before.

• Satellite Images of Earth at Night, from the International Dark-Sky Association. Usually you see night maps of the entire planet (e.g. see previous entry: APOD: The Earth at Night); this time we get details of various cities and regions. Neat.
• The European Space Agency has a multimedia gallery of various satellite photos — some extremely neat stuff in this collection of 300+ images, including hurricanes and pyramids — and an image of the week feature.