In addition, aids and services include a wide variety of technologies including 1) assistive listening systems and devices; 2) open captioning, closed captioning, real-time captioning, and closed caption decoders and devices; 3) telephone handset amplifiers, hearing-aid compatible telephones, text telephones (TTYs) , videophones, captioned telephones, and other voice, text, and video-based telecommunications products; 4) videotext displays; 5) screen reader software, magnification software, and optical readers; 6) video description and secondary auditory programming (SAP) devices that pick up video-described audio feeds for television programs; 7) accessibility features in electronic documents and other electronic and information technology that is accessible (either independently or through assistive technology such as screen readers) .

More than 1 billion people live with disabilities; over 57 million reside in the United States, many of whom are unable to participate in everyday activities, such as using computers, mobile phones, tablets, and similar technologies. Devices that should help to improve quality of life for disabled individuals often become a source of frustration due to the inaccessibility of websites. By making your website ADA compliant, you will gain a new and loyal revenue source, and minimize the possibility of legal action against your company.
While the impact of the Americans with Disabilities Act on online accessibility is likely to remain vague for the foreseeable future, there is no question that equal access is a major concern for users across America, and for the courts that serve those users. In lieu of a clear set of national guidelines, abiding by WCAG accessibility standards remains the best option for most organizations. It’s not just a smart way to avoid accessibility lawsuits and negative publicity—providing accessible solutions for all users is just the right thing to do.
The 2014 case involving Peapod, an online grocery retailer emphasizes that being ADA compliant goes beyond your website. The settlement required Peapod to make its mobile applications accessible by March 2015 and its website accessible by September 2015. Since mobile apps are fast becoming the preferred method of online shopping, e-commerce sites must focus on app accessibility too. 
First, these lawsuits will be very easy for plaintiffs to work up. The plaintiffs do not need any site inspection, experts or research. They can just surf the web from the convenience of their homes or offices. Marty says the "surf by" complaints could dwarf the "drive by" ADA lawsuits that looked for missing accessible parking spaces and other readily visible shortcomings.
A. No.  Municipalities that prohibit specific breeds of dogs must make an exception for a service animal of a prohibited breed, unless the dog poses a direct threat to the health or safety of others.  Under the “direct threat” provisions of the ADA, local jurisdictions need to determine, on a case-by-case basis, whether a particular service animal can be excluded based on that particular animal’s actual behavior or history, but they may not exclude a service animal because of fears or generalizations about how an animal or breed might behave.  It is important to note that breed restrictions differ significantly from jurisdiction to jurisdiction.  In fact, some jurisdictions have no breed restrictions.
A. Yes.  Colleges and other entities, such as local governments, may offer voluntary registries.  Many communities maintain a voluntary registry that serves a public purpose, for example, to ensure that emergency staff know to look for service animals during an emergency evacuation process.  Some offer a benefit, such as a reduced dog license fee, for individuals who register their service animals.  Registries for purposes like this are permitted under the ADA.  An entity may not, however, require that a dog be registered as a service animal as a condition of being permitted in public places.  This would be a violation of the ADA.
UPDATE: Since writing this post in August 2017, several important changes have taken place in the laws regarding ADA compliance for websites. On December 26, 2017, the Department of Justice announced that they have withdrawn the Obama-era Advance Notice of Proposed Rulemaking mentioned in this article which intended to require ADA website compliance. The DOJ’s withdrawal announcement stated, “The Department will continue to assess whether specific technical standards are necessary and appropriate to assist covered entities with complying with the ADA.”
Once you have identified issues that you need to resolve, you need to evaluate if this is something your internal staff can fix by updating content or you need to get your website developer/vendor involved. Regardless how to approach this phase, your objective should be to comply with all 61 guidelines laid out in WCAG 2.0 to become either AA or AAA level compliant.

Blind people, those with low vision, and people with other disabilities that affect their ability to read a computer display often use different technologies so they can access the information displayed on a webpage. Two commonly used technologies are screen readers and refreshable Braille displays. As discussed above, a screen reader is a computer program that speaks the text that appears on the computer display, beginning in the top-left corner. A refreshable Braille display is an electronic device that translates text into Braille characters that can be read by touch. These assistive technologies read text. They cannot translate images into speech or Braille, even if words appear in the images. For example, these technologies cannot interpret a photograph of a stop sign, even if the word “stop” appears in 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.