Thai Web Portals, Search Engines and Link Directories

 Why-Thailand.com
Why-Thailand.com : visit, invest, live, work and retire in Thailand.
http://why-thailand.com

 www.searchenginecolossus.com
List various search engines for Thai websites. Also for Japanese, Thai and German languages.
http://www.searchenginecolossus.com/Thailand.html

 www.sanook.com
Very extensive web directory with search function. Useful if you are proficients in reading Thai language only.
http://webindex.sanook.com/

 Thailand-UK
Free help, advice and information for Thais, their spouses and families living in the UK. Many topics including restaurants, food, shopping, events, visas, Thai TV, phone calls, language and more.
http://www.thailand-uk.com

 ThailandGuru.com
The Guru Guide is a completely practical guide designed for expats (and some tourists). It is never outdated like books. It's continually updated by user feedback and inputs.
http://www.thailandguru.com

 eThailand
eThailand is a portal that provides updated business and financial news.
http://www.ethailand.com/

 ThaiMeta.com
ThaiMeta is a meta search engine, that appeared beginning of 2014. It is in Thai language, but works very well when you use English-language search keywords.
http://www.thaimeta.com/

 Siam Info
Siam Info gives concise information on a number of topics related to Thailand : cars, insurance, cost of living, health, immigration, visas, police, building houses etc. Regularly updated.
http://www.siam-info.de/

 Eatigo
Eatigo is a dining deals and restaurant reservation portal in Thailand and Singapore. Visitors can enjoy discounts of up to 50% at restaurants every day.
http://www.eatigo.com

 Paknam Web Network
Paknam Web Network created a large collection of English language websites about Thailand. Access to a great sites that cover most aspects of life in Thailand.
http://www.paknamweb.com/

 Thai World View
Discover our Thailand. Quit the tourist mob and enjoy Thailand through a Thai / French view.
http://www.thaiworldview.com/

 PixiArt.com
Well categorized Thai-language web directory with search function. Also offering web design, architectural presentations and 3D Animations.
http://www.pixiart.com/

 Thai-uk.org
Promoting the diversity of Thailand, its culture and people in the UK
http://www.thai-uk.org

 DMOZ - Open Directory
Open directory, listing about 2200 websites about Thailand.(English and Thai language sites)
http://dmoz.org/Regional/Asia/Thailand/

 Whitelines.net
Lists various search engines for Thailand. (and also for the rest of the world, if you explore the site)
http://www.whitelines.nl/html/th-list.html