American Association for Applied Linguistics (AAAL)
Teachers of English to Speakers of Other Languages (TESOL)
Arizona Teachers of English to Speakers of Other Languages (AZTESOL)
Canadian Association of Applied Linguistics (CAAL/ACLA)
International Association of Applied Linguistics (AILA)
The Computer Assisted Language Instruction Consortium (CALICO)
Praat (http://www.fon.hum.uva.nl/praat/) - Free downloadable software for Macintosh or Windows that allows the user to analyze, synthesize, and manipulate speech.
The Speech Accent Archive (http://accent.gmu.edu/) - The website presents a large number of speech samples from speakers from different language backgrounds reading the same passage. Great resource for people who wish to compare the accents of different English speakers.
DMDX (http://www.u.arizona.edu/~kforster/dmdx/dmdx.htm) - Free downloadable software that allows to measure reaction times to visual and auditory stimuli.