- Activism's slippery slope: Anonymous targets children's hospital
- New iPad rumor rollup for week ending April 23
- Apple users put at risk by 3-week delay between OS X and iOS patches, researchers say
- Tip of the Hat: Heartbleed prompts chastened tech giants to fund OpenSSL
- 'Francophoned' cybertheft operation reportedly back in action
In Pictures: 10 tips for giving killer presentations with the new Prezi
From using new 3D backgrounds effectively to manipulating multiple objects at once, here are 10 pro tips for using the newest version of Prezi, the red-hot visual presentation tool.