Software Agents have become central to the success of second-generation e-commerce that calls for increased levels of personalization, context sensitivity and dynamism. While agents can play a variety of roles in facilitating online trading, this work chooses to focus on two specific roles viz. the role of agents in Product Brokering / Recommendation and the role of agents in Negotiation. The architecture of the recommendation agent presented in the former part, utilizes a novel algorithm called Entropy based Collaborative Filtering to predict users' ratings to individual items and then...