How to find more detail and information about mobile communication in Thailand

If you believe that "Information is Power " and then if you come to visit the country like Thailand and if you are looking for more detail and information about mobile communication in Thailand then I would give you some really basic information about how to have the power of information and communication with you all of the time during you staying in Thailand.
If you come with your modern smart phone like iPhone or Android Phone you can easily go to the phone or Mobile phone shop around the Airport or in the Mall or along the street and ask them for Thai local SIM and replace them with this new SIM
The Pro of Thai local SIM are:
Cheaper for making national call
Cheaper for SMS
Cheaper for Data mobile like internet service
when you got a new SIM with ability of internet access Now I would recommend you to save cost of communicaton by using email or social network applicaton like Facebook,Skype,Line and etc.
Commonly there are 4 big mobile communication who provide the mobile communicaton service in Thailand and all of them have a website in English for a foreigner who come to Thailand and looking for such information as below
www.ais.co.th
www.dtac.co.th
www.truecorp.co.th
www.cattelecom.net/

Note: There are some key factor for you to consider such as fee of service and quality ;for the fee and charge of service most of them is no big different as well as for the quality ,but seem to be AIS is the most reliaable one from the past and now the truecorp is quite boom and well known in all every part of The country.