Do We Always Need Authentication?

arghyle.com — When submitting a comment to Digg you have to read text from an image and type in the characters for authentication. This is done in order to prove that you “are human” and that the item is not being submitted by some sort of script or bot. This works well enough, but for Digg’s users, especially frequent submitters, it is quite annoying... Jan 24, 2007 View in Crawl 4