http://developers.facebook.com/blog/post/532/

https://github.com/carlbrown/PDKeychainBindingsController

http://www.clingmarks.com/?p=612

https://github.com/domesticcatsoftware/DCRoundSwitch

https://github.com/chrismiles/CMPopTipView

http://nachbaur.com/blog/back-to-basics-using-kvo

https://github.com/bdewey/Pholio

https://github.com/bdewey/dropvault

https://github.com/aspitz/WxHere

https://github.com/aspitz/ToolDrawer

http://aptogo.co.uk/2010/07/protecting-resources/

https://github.com/jerrodputman/CCKit
http://www.tinytimgames.com/2011/08/05/introducing-cckit/

http://www.codeproject.com/KB/iPhone/collapsabletableview.aspx

http://mobiforge.com/developing/story/importing-exporting-documents-ios

https://github.com/bobmccune/Core-Animation-Demos

http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-interface-setup/

http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-custom-chat-view-and-emoticons/

http://mobile.tutsplus.com/tutorials/iphone/building-a-jabber-client-for-ios-server-setup/

http://www.jonathanhui.com/ios

http://www.jonathanhui.com/objective-c
https://github.com/carlbrown/PDKeychainBindingsController
https://github.com/ldandersen/scifihifi-iphone

http://developer.apple.com/library/mac/#documentation/Security/Conceptual/keychainServConcepts/02concepts/concepts.html
http://developer.apple.com/library/ios/#samplecode/GenericKeychain/Introduction/Intro.html#//apple_ref/doc/uid/DTS40007797-Intro-DontLinkElementID_2

http://purplelilgirl.tumblr.com/post/9377269385/making-that-talking-app
http://dirac.dspdimension.com/Dirac3_Technology_Home_Page/Dirac3_Technology.html

http://www.crowsoft.com.ar/wordpress/?p=19

https://github.com/rigoneri/myLauncher

http://code.google.com/p/upnpx

http://ios-blog.co.uk/iphone-development-tutorials/programming-with-blocks-an-overview/
https://github.com/zwaldowski/BlocksKit

https://github.com/enormego/EGOTextFieldAlertView

http://code.google.com/p/iphone-sms/

https://github.com/Zwapp/schemes-scanner

https://github.com/michaeltyson/TPMultiLayoutViewController

https://github.com/michaeltyson/TPKeyboardAvoiding
http://atastypixel.com/blog/a-drop-in-universal-solution-for-moving-text-fields-out-of-the-way-of-the-keyboard/

iOS类似firebug的web调试工具：

http://phonegap.github.com/weinre/

PSTreeGraph for iPad

有shader的UILabe

http://blog.slaunchaman.com/2011/02/28/cocoa-touch-tutorial-using-grand-central-dispatch-for-asynchronous-table-view-cells/

http://www.raywenderlich.com/4295/multithreading-and-grand-central-dispatch-on-ios-for-beginners-tutorial

https://github.com/SlaunchaMan/GCDExample

http://mobile.tutsplus.com/tutorials/iphone/building-an-ipad-reader-for-war-of-the-worlds/

http://mobile.tutsplus.com/tutorials/iphone/ios-sdk-using-a-slider-to-scrub-a-pdf-reader/

http://mobile.tutsplus.com/tutorials/iphone/ios-sdk-adding-a-table-of-contents-to-an-ipad-reader/

http://code.google.com/p/gamekit/

http://www.tonybhimani.com/2011/07/09/ogre3d-sdk-1-7-3-for-apple-iphone-ios-howto/

http://iosboilerplate.com/

https://github.com/gimenete/iOS-boilerplate

http://code.google.com/p/edgy-camera-ios/

https://github.com/BloodAxe/opencv-ios-template-project

https://github.com/BloodAxe/OpenCV-iOS-build-script

http://computer-vision-talks.com/2011/02/building-opencv-for-iphone-in-one-click/

http://computer-vision-talks.com/2011/01/using-opencv-in-objective-c-code/

http://computer-vision-talks.com/2011/08/a-complete-ios-opencv-sample-project/

PageCurl for iOS

https://github.com/xissburg/XBPageCurl

https://github.com/raweng/FlipView

https://github.com/Split82/HMGLTransitions

http://api.mutado.com/mobile/paperstack/

http://www.cocoachina.com/bbs/read.php?tid=75173

https://github.com/vfr/Reader

http://nachbaur.com/blog/core-animation-part-1

http://nachbaur.com/blog/core-animation-part-2

http://nachbaur.com/blog/core-animation-part-3

http://nachbaur.com/blog/core-animation-part-4

http://nachbaur.com/blog/smarter-core-data

http://iphonedevelopment.blogspot.com/2009/09/core-data-migration-problems.html

http://nachbaur.com/blog/using-gcd-and-blocks-effectively

http://deusty.blogspot.com/2011/01/multi-core-ios-devices-are-coming-are.html

http://troybrant.net/blog/2010/01/mkmapview-and-zoom-levels-a-visual-guide/

http://troybrant.net/blog/2010/01/set-the-zoom-level-of-an-mkmapview/

http://www.cocoanetics.com/2011/09/taming-html-parsing-with-libxml-1/

https://github.com/topfunky/hpple

https://github.com/zootreeves/Objective-C-HMTL-Parser

http://code.google.com/p/core-plot/

https://github.com/ReetuRaj/MIMChart-Library   说明文档

https://github.com/buildmobile/iosrangeslider

iOS Range Slider Part 1
iOS Range Slider Part 2

自定义UIAlertView

自定义BadgeView

自定义数字键盘

https://github.com/ZaBlanc/RaptureXML

https://github.com/ZaBlanc/iBoost

https://github.com/escoz/QuickDialog/

https://github.com/pmark/Helpful-iPhone-Utilities

http://www.codza.com/custom-uiimagepickercontroller-camera-view

http://trac.pjsip.org/repos/wiki/Getting-Started/iPhone

http://www.piemontewireless.net/PJSip155_and_iPhoneSDK312

http://code.google.com/p/siphon/

boost for iphone

ffmpeg for iphone

opencore amr for iphone