This guide lists organizations, centers, and sources of information relating to adolescents in transition and adults with learning disabilities and attention disorders. Addresses, telephone and fax numbers, e-mail addresses, and a short description of each organization, center, or other information sources are provided to help readers identify which resources are best suited to their needs and concerns. The resources are grouped according to their primary emphasis in the following categories: (1) learning disability organizations and centers; (2) attention deficit disorder organizations; (3) consumer groups; (4) general education and adult literacy; (5) centers and organizations for general disability information; (6) transition and life management; (7) employment; (8) assistive and adaptive technology; (9) government agencies related to the Americans with Disabilities Act; (10) World Wide Web sites of special interest to professionals and persons with disabilities; (11) World Wide Web sites which provide legislative text and commentary, or information of general legal interest; and (12) publications and books. The products of the federally funded Learning Disabilities Research and Training Center are also listed. The last page of the guide is a summary of available 800 numbers for organizations, centers, and informational sources. (CR)