Digital Business is offering IT experts the chance to air their views about a range of topics on Mondays and Thursdays. From June 23 - July 11 our subject is Web 2.0 strategy. The fourth article in the series, by Philip Rosedale, founder and chairman of Second Life, examines virtual worlds, after the hype If you have strong views on this, write to us at digitalbusiness@ft.com The best correspondence will be published

4G wireless broadband will make possible the services users have been waiting for – or so they, and the industry, hope. Paul Taylor reports

Sarah Murray on how RFID and other innovations can ease airline passengers' worries over lost luggage

Threats change and so companies must prioritise and constantly update disaster recovery plans, says Stephen Pritchard

Published on June 18 2008, or download as a pdf