hi the springboard source is not a blog it is a column by windows it pro and it is written by paul thurrott it has all three elements of a reliable source credible author credible publisher and contents itself unlike what you think it was not a set of abstract techniques it was tangible changes visible to laymen end user a new version of windows firewall a new version of internet explorer and the famous windows security center windows xp service pack was in important milestone because at the time microsoft was under full scale global scrutiny about the state of security in its products windows xp service pack was a security facelift in windows xp so there is little surprise its security portion has its own codename best regards