David has worked as an independent Knowledge consultant for the last 15 years. Previously he was employed in high technology industries for over 30 years. In his early career he was a professional software development manager and at one time worked for Lotus Development as "International Czar" where he was responsible for ensuring that products were designed for the global marketplace.

David is a keynote speaker, facilitator, consultant and writer and regularly presents and runs workshops on various aspects of knowledge management and social learning. He is particularly well known for his Knowledge Cafes that he runs in London and many other cities around the world. He also writes a regular "Perspective" column in Inside Knowledge Magazine.

He is the founder of a highly recognized Knowledge Community named after him - a community of over 15,000 people in 154 countries whose purpose is to help its members achieve their full potential by connecting them with like-minded people, new ideas, and alternative ways of working. Members receive his free monthly Knowledge-Letter that is now in its 9th year.

David works globally and 2008 worked in many cities including Singapore, Kuala Lumpur, Jakarta, Bangkok, Sydney, Melbourne, Canberra, Wellington, Christchurch, Auckland, Seattle, Phoenix, Quebec City, Sao Paulo, Rio de Janeiro, Oslo, Johannesburg, Pretoria, Cape Town, Stellenbosch, Brussels, Dubai and Jubail in Saudi Arabia.

In recent years David has done work for many organizations, both large and small, private and public sector, including:

ACT Knowledge Management Forum, Australia; Academic Conferences International, UK; Ark Group, UK; Bangkok University, Thailand; British Council, UK; British Library, UK; Cranfield University, UK; BUPA, UK; DDB, London; Department for Environment, Food and Rural Affairs (DEFRA), UK; Den Norske Dataforening, Norway; Dubai Electricity And Water Authority (DEWA), UAE; Dunamis, Indonesia; Henley Management Business School, UK; IBM, Singapore; Information Today, USA; Informa, UK; International Federation of Library Associations and Institutions; Institute of Business Consulting, UK; KM Plus, Indonesia; Lukey Training, New Zealand; National Audit Office, UK; National Library Board, Singapore; NetIKX, UK; NHS Confederation, UK; Open University, UK; Osney Media, UK; Petrobras, Brasil; Regent's Business School London, UK; Saudi Basic Industries Corporation (SABIC), Saudi Arabia; SC Johnson, UK; Sheffield Hallam University, UK; Singapore Armed Forces Training Institute, Singapore; Special Libraries Association; StatoilHydro, Norway; Symphonia Consulting, South Africa; The Institution of Engineering and Technology, UK; Unicom, UK; University of Greenwich Business School, UK