The current version of the (draft) proposal for an XML-based Speech Synthesis Markup Language, as part of the W3C's Speech Interface Framework. This is an industry standard in the making. http://www.w3.org/TR/speech-synthesis/
Site provides a free, cross platform (Windows and MacOS), cross browser (Netscape and IE) plug-in that gives web sites the ability to talk by transforming text to speech. http://www.speaksforitself.com
PanaVox is a text to speech technology for acessibility, advertising, and content enhancement which works on narrowband connected computers and requires no specialized software. http://panavox.panaserve.net
Prosody-filter to simulate emotional arousal with speech synthesis based on the free-for-non-commercial-use MBROLA synthesis engine available in Java. http://emofilt.sourceforge.net/
Research and development of Thai Text-to-Speech Synthesis at National Electronics and Computer Center. Established in 1998 to research and develope a natural Thai synthesized speech. http://www.nectec.or.th/rdi/vaja/