Roger Halbheer is one of the leading online security experts in Europe. We’re delighted to have him in our ranks – he is Chief Security Advisor of Microsoft EMEA – and to point you to his blog, Roger's Security Blog, which he updates at least once a week. What I particularly like about Roger’s style is that he cuts to the chase and always centres his thoughts on end-user concerns, not merely the technology; his latest post for instance is about infected PCs, and what parents can do to avoid their kids downloading risky software, especially onto corporate notebooks. (Hint: awareness, not enforcement!)