CodeSourcery has made their Advanced Linux Programming book a free download.
This is as close to the indispensable Richard Stevens' Advanced Programming in the Unix Environment as you can get. ALP is highly recommended reading.
Hubble recently identified 50,000 evolving galaxies near the Big Dipper.
Read the full article from hubble site and the photo that puts everything in perspective.
I don't think I can get used to how big the Universe is. Ever.
Dismal World has some unforgettable photos. These are ones that have opened the eyes of nations to acts of aggression and despair. Photos that changed the world. See, feel, and reflect on how precious life is, and it's futility.
WikiSummaries.org offers free summaries of the latest books. There are only ~ 40 books at the moment, but I'm sure the list will grow in the future. David Allen's Get Things Done: The Art of Stress-Free Productivity has been summarized rather well.
Btw, if you want to read (or listen to audio books), head over to the Project Gutenberg website. They have over 17,000 books that are out of copyright.
