I’d like to plug one of my favorite math blogs: Let’s Play Math!
Why do I like it so much? It captures the spirit of play and beauty of math excellently. The current quote on the blog is:
It’s like asking why Beethoven’s Ninth symphony is beautiful. If you don’t see why, someone can’t tell you. I know numbers are beautiful. If they aren’t beautiful, nothing is. — Paul Erdös
Well said. There’s also a veritable bevy of games, books, and mathematical ideas served up. The site is altogether lovely. From now on, it will be featured on my blogroll.