I recently finished writing a chapter on CAPTCHA for Head First PHP & MySQL, a book that has managed to take over my life these days. That chapter got me thinking a lot about user names, passwords, and web security...and then I saw the article below. It suggests as an...

As it turns out, six degrees was a tiny bit optimistic in referring to how much social separation exists between each of us. But kick it up one more degree and we're suddenly one big group of friends spread out across the globe. Microsoft researchers recently put the "six...

Thanks to my friend Catherine for this little gem. The guy's name is Guy Wright, and he's a modern master when it comes to yo-yo's. That's right, yo-yo's. It's a frustrating, often solo journey to work hours a day mastering a skill that you know only a few select people w...

Here's an interesting take on the doomsday scenario laid out in The Terminator movies, and how it might really go down in the real world. No, I don't think your iPhone is plotting against you just yet but there are some interesting arguments for how "the machines" might s...

First off, I want to apologize to anyone who has posted on here and not received a prompt reply. I recently signed on to co-author Head First PHP & MySQL, and it has been quite the hecti...