Apple has stopped signing iOS 8.1.2 meaning that it is no longer possible to restore to the firmware version to jailbreak your iPhone, iPad, or iPod touch.
JailbreakMe.com is now showing a 'We'll be back soon.' sticky note suggesting that the site may be undergoing updates before the release of the iPad 2 jailbreak.
Saurik has released an update to Cydia that fixes the 'Restore from Backup' issue which required you to reinstall Cydia Installer after restoring from an iTunes backup.
The Clear iSpot, a 4G personal hotspot with dedicated support for Apple's devices, including the iPad, iPod touch and iPhone, now has its own web-based jailbreak.
Instructions on how to jailbreak and unlock your iPhone 3G on iOS 4.2.1 using PwnageTool for Mac. This tutorial will explain how to update your baseband if needed for unlock.
Instructions on how to jailbreak your iPhone 3GS on iOS 4.1 using PwnageTool for Mac. This tutorial will help you upgrade your baseband if needed for unlock.
These are instructions on how to jailbreak your iPod Touch 3G and iPod Touch 4G using Limera1n for Mac. Limera1n supports iOS 4.0, 4.0.1, 4.0.2, and 4.1.
The P0sixspwn jailbreak tool has been updated with support for iOS 6.1.6 for the 3GS and iPod Touch 4th generation. It also brings crash fixes when using iTunes 11.1 or higher
iH8sn0w has announced that the source code for p0sixspwn, a utility that performs an untethered jailbreak of iOS 6.1.3, 6.1.4, and 6.1.5, has been posted to GitHub.