This research aims to study about usage behavior of Facebook users their expectations uses and gratifications as well as the relation between expectations uses and gratifications of Facebook users and communication behavior found among students at Rajamangala University of Technology Phra Nakhon who are Facebook users. The research is conducted using survey as a research method and the data used in this research is taken from a sampling group of 400 students. The results of the study were as followed : 1. The students at Rajamangala University of Technology Phra Nakhon although are different by gender age year of studies faculty GPA and family’s income share the same kind of behavior when using Facebook. 2. The students at Rajamangala University of Technology Phra Nakhon who are different in gender age year of studies faculty GPA and family’s income share the same kind of expectation when using Facebook. 3. The students at Rajamangala University of Technology Phra Nakhon whose family incomes are varied also have different uses of Facebook. 4. The students at Rajamangala University of Technology Phra Nakhon who are different in gender age year of studies faculty GPA and family’s income do not have any difference in their gratification while using Facebook. 5. The expectation uses gratification of Facebook users have positive relation at high level with communication on Facebook. Moreover the outcome has shown that the majority of the students at Rajamangala University of Technology Phra Nakhon use Facebook on a daily basis. Their expectation and usage levels are high and moderate respectirely while gratification level is high.

The main purpose of the study was to investigate the relation between demographic characteristics mass media exposure knowledge and sexual attitude of the students in Bangkok area. Question aires were used to collect data from a total of 400 samples. The result of the study was as followed: 1. The mass media exposure differs significantly among the sample groups of different sex university and income. 2. The sexual knowledge differs significantly among the sample groups of different sex and university. 3. The sexual attitude differs significantly among the sample groups of different sex university and income. 4. Mass media exposure does not correlate with the sexual knowledge. 5. The sexual knowledge correlates with the sexual attitude.

This research aimed to examine knowledgeexposureusage and gratification towards alternative energy information of inhabitants in Bangkok. The data from the samples were collected by questionnaires. The findings were as follows; 1. The alternative energy internet information exposure differs significantly among the sample groups of different sex. 2.The media expusure through televisionsraduisnewspapermagazine and internet differs significantly among the sample groups of different age. 3.The media exposure through radios and newspapers differs significantly among the sample groups of different income. 4.The media exposure through televisions and interne differs significantly among the sample groups of different educational background. 5.The media exposure through televisionsradios newspapermagazine and internet differs significantly among the sample groups of different career. 6. The knowledge on GasoholNGV and Biodiesel differs significantly among the sample groups of different age. 7.The knowledge on Gasohol and Biodiesel differs significantly among the sample groups of different income. 8.The knowledge on Biodiesel differs significantly among the sample groups of different educational background. 9.The knowledge on Biodiesel differs significantly among the sample groups of different career. 10. The internet usage and gratification differs significantly among the sample groups of different internet exposure.