Title	What Makes APIs Difficult to Use?
Author	Minhaz Fahim Zibran
Citation	Vol. 8  No. 4  pp. 255-261
Keywords	Application programming interface, API design, API usability

Title	An Enhanced Ant Algorithm for Grid Scheduling Problem
Author	Kousalya.K, Balasubramanie.P
Citation	Vol. 8  No. 4  pp. 262-271
Keywords	Grid computing, Grid Scheduling, Ant System, Heuristics

Title	A Community-Based Peer-to-Peer Model Based on Social Networks
Author	Amir Modarresi, Ali Mamat, Hamidah Ibrahim, Norwati Mustapha
Citation	Vol. 8  No. 4  pp. 272-277
Keywords	Peer-to-Peer computing, social network, community, Model

Title	Tuning Algorithms for PID Controller Using Soft Computing Techniques
Author	B.Nagaraj, S.Subha, B.Rampriya
Citation	Vol. 8  No. 4  pp. 278-281
Keywords	Genetic algorithm, Evolutionary programming and particle swarm optimization