When’s the last time you thought about how accessible your website is to users who are blind or visually-impaired? Even though ADA website compliance is the law, many businesses have failed to update their websites to accommodate these users. Most recently, Winn-Dixie is in the news for failing to provide ADA compliant web design. A user who is blind was unable to use their site, filed a lawsuit, and a Miami judge ruled that Winn-Dixie violated the Americans with Disabilities Act. If your website is not currently accessible to the visually-impaired, it’s time to think about updating your site for compliance and user experience.
When you insert an image into a post or page, consider providing a rich description for the caption that will improve the reading experience for everyone, but especially folks who can’t see the image. Be creative. Instead of “My son on his swing,” try “My son is playing on his favorite swing. His face is filled with pure joy on a beautiful Spring day. Perfection.” The goal here is to convey the feeling of the image.
Level AA is a little more significant, and makes sites accessible to people with a wider range of disabilities, including the most common barriers to use. It won't impact the look and feel of the site as much as Level AAA compliance, though it does include guidance on color contrast and error identification. Most businesses should be aiming for Level AA conformity, and it appears to reflect the level of accessibility the DOJ expects. 
more than the list of websites, I appreciate the 10-second method you describe. I think it's worth explaining to developers and site owners that there are indeed some simple tricks to quickly assess a web page without having a deep understanding of the WCAG. Personally, I like removing all the CSS styles (with the Web Developer Toolbar in Firefox, shortcut is Shift+Ctrl+S). If the page is still pretty readable, with no clumsy technical code; if it shows a neat heading structure; if lists appear well structured and appropriately used; if all text, is in black (except links), left-aligned, and with its default font and size; then it's been probably properly coded, HTML-wise.
Not to be outdone by their Southern neighbors, the Canadian government site is highly accessible. The home page is a simple page, beautiful in its perfect symmetry between English and French. The default language as specified on the element is English (lang="en", hey they had to pick one) but all French content is marked up with lang="fr". It's actually quite pleasing, and very Canadian, to listen to this page with JAWS as it alternates between the two languages.

Although the plugin works, we activated the white label solution. They said: For only $10 you can modify the widget footer, remove the donate link and enable other customizations From then and on they charge me every single month 10$, they don't reply to my messages and the so called "Manage" menu has been disappeared from the widget... BE AWARE! I'm still trying to resolve this....
The Federal Communications Commission (FCC) enforces regulations covering telecommunication services. Title IV of the ADA covers telephone and television access for people with hearing and speech disabilities. It requires telephone and Internet companies to provide a nationwide system of telecommunications relay services that allow people with hearing and speech disabilities to communicate over the telephone.