Asia Professional Speakers - Singapore
http://www.asiaspeakers.org
Asia Professional Speakers - Singapore (APSS) is an Association for Professional Speakers and aspiring professional speakers in Asia. The association provides opportunities for speakers to network, learn and share with each other, expanding their experience and expertise.

Toastmasters
http://www.toastmasters.org
Toastmasters - a not for profit International orgnaisation devoting to helping people improve their communication and leadership skills. Toastmasters club is an excellent place to practise your speaking and presentation skills.