The World Tourism Organization's (WTO) site has sections for both the Commission for East Asia and the Pacific (CAP) and the Commission for South Asia (CSA). The site is chock-full of academic research papers, annual reports, speeches, newsletters, and information on WTO projects. Sustainable tourism is a hot-button issue for WTO, so there is plenty of information on the subject as well as brief summaries of tourism trends, recent meetings, current projects, and contact information for both CAP and CSA member states.
Since its inception in 1951, The Pacific Asia Travel Association (PATA) has been a major player in encouraging tourism and, more recently, advocating sustainable tourism. PATA's site includes news, events, a member directory, and a section on intelligence. In fact, PATA's Strategic Intelligence Centre is one of the association's crown jewels. Some PATA information is limited to members, but much is available to anyone interested in learning more about the region. Destination profiles of 45 locations are also available using content from the Lonely Planet guidebook series in addition to weather, exchange rates, hotel information, and maps.
The 10 member destinations of the Asian Association of Convention and Visitor Bureaus (AACVB) are: China, Hong Kong, Indonesia, Japan, Korea, Macau, Malaysia, the Philippines, Singapore, and Thailand. Each member has a dedicated page that gives a feel for the destination as well as offers general contact information and links to local sites. Information on DMCs and convention centers is also available. Some of the details are out of date, but the site offers a good introduction to the area.