The codes, called captchas, are also showing up more often amid a boom in new Web services, ranging from blogging tools to social-networking sites. The trickiest ones “make you not want to go to those sites anymore,” says Scott Reynolds, a 29-year-old software architect in Ocala, Fla., who lambasted the devices on his blog last year. —David Kesmodel —Codes on Sites ‘Captcha’ (Wall Street Journal)

I’ve been considering adding a catpcha to the blogs.setonhill.edu website. The anti-spam protection there is pretty good, but the site is hit with so many spam attempts that the spam-filtering software sometimes crashes the server. (My ISP has been understanding and creative about it, though.)