American Rhetoric is a continually growing database of full text speeches delivered by presidents and political activists, actors, Christian leaders, authors, talk show hosts, and many famous historical figures.
From nonverbal communication to listening to intrapersonal communication, the National Communication Association has put together a great collection of online resources.
Combining theory, history, and practice, this encyclopedia by Thomas Slone, has a special emphasis on public speaking, performance and communication. Cross-references, bibliographies after each article, and topical indexes further enhance the work.
Compiled by David B. Givens of the Center for Nonverbal Studies. This online dictionary provides some explanatory text along with a diagram or photograph of the nonverbal cue being discussed.