This Article focuses on the awareness and use of social network sites by engineering graduates of C. Byregowda Institute of Technology, Kolar, Karnataka (CBIT). The main aim is to know the devices used to connect internet, how often students access Social Network sites and purpose of using SNS etc. The study adopted a survey design and data was collected from the respondents using a questionnaire. The major finding of the study are majority of the respondents are using mobile phone to connect internet. Majority of the respondents comes to know the social network sites from their friends. Face book places first of the favorite Social network site for the respondents.