Cloud computing is the present trend followed throughout the world. It is much evolved especially in Ireland which is having few IT MNC's headquarters and providing many opportunities in this sector. Though Ireland has accepted cloud computing in all its major SMEs, many firms are still taking a back step or confused to undertake cloud operations in their respective businesses. This is because the lack of awareness among SME's on Cloud security which has become a major drawback for Cloud computing. The book is about the small firms which have little awareness and only a few of the firms have implemented Cloud in their business operations. Most of them are still using traditional IT systems and yet thinking to shift towards Cloud.