This paper discusses tools and strategies to support the capturing and use of knowledge embodied in design practice. The tools described are part of a system conceived as a suite of modular tools, KMan, to be developed and adopted incrementally and independently, in the framework of a wider organizational knowledge management strategy. The concept of knowledge pebbles is introduced to describe collections of heterogeneous data formats to form a unit of potential knowledge In the final section of the paper an overview of all the tools part of the system is presented and some of the tools described and illustrated in more detail. In particular the Brief Management Tool, the Generic Search Tool and the Pebble Creation Tool are discussed.