Over the past 4-5 years I have been involved, either directly or indirectly, in the design, development and deployment of ontology-based tools that range from ontological constraints managers to ontology-based filtering tools. Despite the versatile nature of ontologies, most of today's technologies support design and development but very few deployment. As a result, it seems that their deployment in diverge applications is a matter of ad-hoc processes rather than a well-defined engineering process. We currently lack sophisticated ways of deploying ontologies, in particular, tools to support deployment. In this talk, I will try to elaborate on the reasons for this dearth of tools by pinpointing on weak areas in current ontology engineering. I will revisit some of the tools that I was - or I am currently - involved in deploying (Ontological Constraints Manager (OCM), MyPlanet (recently, OntoFilter), Communities of Practice Identifier (COPI) ) and speculate over the benefits of using ontologies with respect to the engineering effort involved.