Did Rackspace buy Cloudkick to keep up with AWS? (GigaOm)
Rackspace is moving up the cloud stack by acquiring Cloudkick, a San Francisco-based startup that provides server management and monitoring as a service. The acquisition represents a quick exit for Cloudkick, which just exited beta in January and only incorporated on-premise server management in March. Derrick Harris looks at the reasons behind the deal.

Yahoo plans to kill Delicious, other services (Financial Times)
Yahoo is planning to kill off a handful of enduring and quirky services, including the pioneering bookmarking service Delicious, as it continues to streamline operations.

Yahoo closing down Delicious; but why won’t Carol use the F-word? (The Guardian)
Analysing the memo from Carol Bartz, it’s hard to see where she thinks future growth from Yahoo is coming from – especially as she’s shutting so many services right now. But what about the one she doesn’t mention?

If VDI is so great, then why aren’t you using it? (Brian Madden)
Brian Madden looks at desktop virtualisation and asks why it’s not taken off in the same way as storage and server virtualisation.

Security is the top concern for public cloud, but what does that really mean? (Gartner)
Survey after survey shows that the top issue that organisations have when considering the adoption of public cloud-based computing services is "security and privacy", says Neil MacDonald.