Nowadays, researchers and developers in knowledge engineering do not add information about their ideas and tools into a shared semantic network. They use documents (articles, emails, documentations, etc.). Therefore, finding and comparing tools or techniques for learning purposes or for solving a problem is a lengthy process (with most often sub-optimal results) that involves reading many documents partly redundant with each other. Our knowledge server WebKB-2 supports the collaborative building of a formal or semi-formal semantic network, and we have begun creating such a network to permit a scalable sharing of information about knowledge engineering. This article illustrates this work, its principles, and an approach to ease the representation and comparison of tools or techniques.