Here's the regular Friday roundup of Web links. Feel free to contribute your own comments on the week that was ... or the week that's coming up. And remember, I'm counting on you to help keep the website wonderful by using the buttons that accompany every comment. Vote up the comments you like, flag the comments that aren't appropriate, and have yourself a great weekend.

• Enter the 'Dance Your Ph.D.' contest
• The Economist: A game of cat and mouse
• io9: 20 science-fiction novels that will change your life
• Jupiter smash sequel: Bad Astronomy | Planetary Blog
• NASA Science News: Keeping a wary eye on space weather