Visit http://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more.

Simon Sinek presents a simple but powerful model for how leaders inspire action, starting with a golden circle and the question “Why?” His examples include Apple, Martin Luther King, and the Wright brothers — and as a counterpoint Tivo, which (until a recent court victory that tripled its stock price) appeared to be struggling.

The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. You’re welcome to link to or embed these videos, forward them to others and share these ideas with people you know. For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), submit a Media Request here: http://media-requests.TED.com

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http://www.ted.com Alleviating poverty is more guesswork than science, and lack of data on aid’s impact raises questions about how to provide it. But Clark Medal-winner Esther Duflo says it’s possible to know which development efforts help and which hurt — by testing solutions with randomized trials.

TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the “Sixth Sense” wearable tech, and “Lost” producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate. Watch a highlight reel of the Top 10 TEDTalks at http://www.ted.com/index.php/talks/top10

More info and download links: http://stateofjailbreak.com/tutorials/spirit/

Spirit, the untethered jailbreak for all models of the iPhone (including the 3GS), the iPod touch (including the 3G model) as well as all versions of the iPad has just come out. It works on firmware 3.1.2 and 3.1.3 for the iPhone and iPod touch, as well as 3.2 on the iPad. In this video I give you a full tutorial on how to use Spirit, including a fix for the compatibility issues many people are having.

Download AutoSHSH: http://www.mediafire.com/?dznm5a5mkcw

Back up your SHSH blobs for Mac tutorial: http://iclarified.com/entry/index.php?enid=9189

This is a tutorial on how to use AutoSHSH, a program made by ih8sn0w to allow you to backup your SHSH blobs for 3.1.3 (for iPhone and iPod touch) or 3.2 firmware (for iPad). By doing so it will allow you to restore your device back to the firmware you are on currently so that you can jailbreak with Spirit again in the future. I also discuss the upcoming untethered userland jailbreak for all models of the iPhone, iPod touch as well as the iPad, Spirit.

Intro music by Kevin MacLeod.