"Curb Cuts" on the Information Highway: Older Adults and the Internet
http://www.leaonline.com/doi/abs/10.1207/s15427625tcq1304_4
  access restricted (by the publisher) to members/subscribers/customers only
  peer-reviewed

O'Hara, Karen
Technical Communication Quarterly
2004

Abstract:

With demographic and social trends in mind, technical communicators should be examining the online communication needs of elderly people who may share certain characteristics with other Internet users, particularly the disabled community. Although education, universal design, and accessibility initiatives help us address many of the developmental and cultural barriers elderly Internet users face, this article examines some current offerings, analyzing the growing elderly audience to better incorporate usability into Web design.