Online social networking services such as Facebook, Twitter and LinkedIn have proliferated in recent years. In this paper, we will focus on the impact of Facebook, which is the network with the most users worldwide (as of March 2011 Facebook had more than 640 million registered users). Facebook...

Based on Service Oriented Architecture (SOA) paradigm, Web Services is one of the most recent integration technologies enabling “dynamic e-Business”. Implementation of Web Services revolutionizes application design and development concepts, and introduces a shift from object-oriented to...

Facebook is one of the social network sites (SNSs) that increasingly attracted millions of users. They have use this site for various reasons. Malaysia has a steady growth in facebook users and has the highest users in South East Asia. The time consume on facebook activities have become a big...

This article examines online gift giving in the form of opinion, information, and advice that individuals post on websites. Research has highlighted altruism and reciprocity as the key motives behind such gift giving. We argue that informational gift giving is also strongly driven by status and...

One hundred forty characters seems like too small a space for any meaningful information to be exchanged, but Twitter users have found creative ways to get the most out of each Tweet by using different communication tools. This paper looks into how 73 nonprofit organizations use Twitter to...

Managers of new brands seek to leverage positive WOM and establish a critical mass of consumers who interact with their brands at social-network sites (SNS). Effective selection of "seeds" or influencers at SNS who will recommend the product and leverage the power of their social networks to...

What explains the large variation in the number of contacts (degree) that different participants of social networks have: age, randomness, or some unobservable quality measure? The model presented in Jackson and Rogers (2007), which emphasizes age as the main source of variation, successfully...

The recent events in the Middle East and North Africa have demonstrated the potential of online social media as a tool of political activism, as well as the counter-measures this has provoked from repressive regimes. This potential, and State responses so far, raise significant human rights...

This paper studies the competition between Web 2.0 communities in a game theoretic framework. We model three important features of these institutions: (i) firms' content is usually user-generated; (ii) consumers' content preferences are governed by local network effects, and (iii) consumers have...

This paper examines the role of social media in progressive political change, in light of its use in the Arab Spring uprisings. The concept of social media us explained, before arguments for and against the importance of social media in revolutions (eg those of Malcolm Gladwell and Clay Shirky)...