Morrison K. Mutuku and Josphat K. Kyalo (2015): Determinants for Profitability of E-Commerce Operations of Companies in the Communication Sector in Nairobi County, Kenya; International Journal of Education and Research (IJER); ISSN: 2201-6333 (Print) ISSN: 2201-6740 (Online); www.ijern.com; March 2015,Vol. 3 No. 3; P 657–670.