Social networks have become an essential part of the people?s communication system. They allow the users to express and share all the things they like with all the people they are connected with. However, this shared information can be dangerous for their privacy issues. In addition, there is some information that is not explicitly given but is implicit in the text of the posts that the user sh...

application of relationship marketing tactics can not be successful alone and should consider other factors such as personnel attributes(social afflication ,social recognition, shopping enjoyment, product category involvement)perspective at selection and appraisal. the sample research customers of maxim chain store in tehran what choiced to method sampler chanceful. in this study we examine thr...