This site is a part of the Government and business partnership programme Project Endurance, which is being funded by a number of commercial organisations and government departments/agencies. See here for ITsafe's partner list.
Thus far, the site is not overly compelling although this will improve with time. The information is limited and the site design requires a lot of server hits - the amount of information returned from each hit is limited. Content wise, the site is very new - there are no security alerts, no security advisories, and only two "other" advisories (one relating to a buffer overflow issue with Trend AntiVirus software and the other a FireFox vulnerability). The amount of information that is displayed for each issue is also limited, although links to more information are provided.
Despite these minor grumbles, this is a a great start to Project Endurance. You can sign up to receive ITsafe bulletins by email by going here. One nice touch with the sign up - the signup form asks for an itsafe word. This word is then added to the subject heading in the email - highly useful for filtering purposes. It would also reduce the risk of phishing attacks allegedly coming from itsafe.
For more security links, see Technorati's Security page.