I currently serve as the Chair of Public Policy for ACM SIGCHI, and have previously served as a voting member on the USACM Council. I am currently the forum editor for public policy in Interactions Magazine, and I also serve on the executive board of the Friends of the Maryland Library for the Blind and Physically Handicapped .
During the 2012-2013 year, I was a Fellow at the Radcliffe Institute for Advanced Study at Harvard University, where I remain affilated with the Harvard Law School Project on Disability, and I am also a member of the Senior Common Room at Leverett House. I am an affiliate researcher at the Information Policy and Access Center at the University of Maryland College Park, and I co-direct the Cambridge Workshop on Universal Access and Assistive Technology (CWUAAT) at the University of Cambridge Engineering Design Centre. I am a part of the faculty leadership team for the AccessEngineering Project at the University of Washington. I am also affiliated with the Universal Usability Laboratory at Towson University, which I founded in 2003.My research has been highlighted in articles in the Baltimore Sun, Wall Street Journal, Louisville Courier-Journal, Minneapolis Star-Tribune, Braille Monitor, and stories on National Public Radio, WAMU-FM, WCBM-FM, and WMAR-TV. I have served on program committees for the SIGCHI, ASSETS, SIGDOC, INTERACT, and HCII conferences. My research has been funded by the National Science Foundation, the Maryland Technology Development Corporation, the American Library Association, the Institute for Museum and Library Services, and other governmental agencies and non-profit organizations.