All under the sun ( :-)

Hypervisor Reverse Engineering Wiki
https://ps3wiki.lan.st/index.php/Hypervisor_Reverse_Engineering
http://www.ps3news.com/forums/playstation-3-dev-news/ps3-hypervisor-reverse-engineering-progress-detailed-115162.html

JB Devices
Review1 at taringa.net
Review2
Dukio Comparison List

Summary of what had happened so far
http://www.darkmirage.com/2010/09/26/the-state-of-ps3-jailbreak/

Jaicrab blog via Google Translate
Xorloser's Blog
Marcan42's twitter page
SKFU Blog
Kakaroto PS3