Today microblogging service Twitter was the target of a DoS attack and therefore the site was down for some time. (Via Twitter Blog)

Apple released Mac OS X 10.5.8. Seems this is the last update before the release of Mac OS X 10.6 Snow Leopard in September. (Via Macworld)

German based identity hub YIID has added a new, more comprehensive address book containing people you follow on YIID and imported contacts. (Via YIID on Twitter)

MySpace plans to incorporate open semantic microformats code. (Via Marshall Kirkpatrick, Technology Journalist)