Knowledge management is an important element of Ernst & Young’s competitive strategy. Computer-mediated collaboration at Ernst & Young is enabled through 400 specialist staff working in knowledge centres in 10 countries. The role of these knowledge centres can be explained through the collaborative infrastructure framework developed by Evaristo and Munkvold (2002) and it can be shown how these knowledge centres support the effective sharing of firm specific knowledge for using user-driven collaborative tools. In particular, the author notes the need to minimise software risk by sharing knowledge that has traditionally been the domain of IT specialists. This presentation accompanies a paper presented at KM Challenge 2004 in March 2004, in Sydney, Australia. The paper can be downloaded via http://chieftech.com.au/articles-presentations-and-papers