Category: captcha

Podcast #72: Twitter Accessibility, Events, and News

Download Web Axe Episode 72 (Twitter Accessibility, Events, and News)


  • Feedback for new Web Axe theme song?
  • Opera 10 beta
  • Where are the headings?
  • AudioBoo “A Eulogy For IE6” by Paul Boag.
  • Web Axe-Refresh Detroit Tweetup! Ann Arbor, Michigan, Saturday, July 18.


Twitter and Web Accessibility

Accessible Twitter updates:

  • Ajax for deleting DM.
  • Popular Links page; added categories.
  • Add URL shortening to DM page.
  • Add (limited) functionality to update user profile.

Compiled List of links from #TwitterBook (look who’s first!)

Other Accessible Twitter applications:

  • Try a mobile web app.
  • TwInbox – plug-in for Microsoft Outlook
  • Tweet s60: totally accessible Twitter mobile app for Nokia Series 60 devices (via @AbilityNet @BlindTwit)

Other issues:

More News

    CAPTCHA Alternatives and Articles

    Seems like there’s been more talk about CAPTCHA lately (stands for “Completely Automated Public Turing test to tell Computers and Humans Apart”). Most of us dislike the use of CAPTCHA in web forms. And all of us (I hope) can certainly agree that it’s poor in usability, and often times not accessible–even for any human user; see Top 10 Worst Captchas. Even so, it’s still way too common on the web. Damn spammers are forcing developers to implement this poor technique.

    Fortunately, the collective intelligence of developers across the world have created many alternatives to CAPTCHA. Here are some great ideas from WebAIM’s article Spam-free accessible forms:

    • Detect spam-like content within submitted form elements.
    • Detect content within a hidden form element.
    • Validate the submitted form values.
    • Search for the same content in multiple form elements.
    • Generate dynamic content to ensure the form is submitted within a specific time window or by the same user.
    • Create a multi-stage form or form verification page.
    • Ensure the form is posted from your server.

    Here are some other articles about the (in)accessibility of CAPTCHA and other resolutions:

    Example of impossible CAPTCHA:

    Podcast #40: About CAPTCHA and Accessibility