For example, retailers’ websites now offer the means to order online for pick-up at the store. Restaurants offer reservations online. Movie theaters’ websites offer ticket reservations or printing for use at the theater. In each of these instances, the case may be made that the website constitutes a public accommodation under the ADA because there is a connection between the good or service complained of and an actual physical space.

Read more at
http://www.aoda.ca/the-coming-tide-of-website-disability-claims-under-ada/