Hypervisor and does the guest os run in protected mode?

Seems it does and they are different levels of protected mode, 0 for the kernel and 3 for applications.
Intel and AMD both implement different ways to support virtualization, one way has a protection level of -1.

http://en.wikipedia.org/wiki/Ring_(computer_security)

More on Tor security

This article talks about Tor in relation to what it prevents, and gives a high level overview of how to tracks users
https://www.torproject.org/projects/torbrowser/design/#privacy
evercookie
panopticlick eff browser fingerprinting
http://www.safecache.com/

Tor Inner workings

Seems to be related to how tor works behind a NAT
https://github.com/samyk/pwnat
http://samy.pl/pwnat/pwnat.pdf

jsPerf — JavaScript performance playground

jsPerf aims to provide an easy way to create and share test cases, comparing the performance of different JavaScript snippets by running benchmarks. 

http://jsperf.com

Writing Fast, Memory-Efficient JavaScript

http://coding.smashingmagazine.com/2012/11/05/writing-fast-memory-efficient-javascript/

HIGH-RESOLUTION TIME AND NAVIGATION TIMING API

V8 FLAGS FOR DEBUGGING OPTIMIZATIONS & GARBAGE COLLECTION
trace-deopt looks interesting to see what code it had to deoptimize

JAVASCRIPT MEMORY LEAK DETECTOR
very interesting a tool that detects what objects are causing leaks
https://code.google.com/p/leak-finder-for-javascript/



Resource Timing http://w3c-test.org/webperf/specs/ResourceTiming/
Navigation Timing http://www.w3.org/TR/2012/CR-navigation-timing-20120313/

MultiLevel source mapping in Chrome

Pretty amazing stuff the chrome developer tools team is doing, you can go from coffeescript down to minified js in the browser. This allows you to view coffeescript in the browser via the source maps but really there is minified js running in the browser.

The Breakpoint Ep 3: The Sourcemap Spectacular with Paul Irish and Addy Osmani
http://www.youtube.com/watch?v=HijZNR6kc9A&feature=player_embedded

Travis CI

Continuous integration platform integrates well with github, pretty hot stuff.

https://github.com/travis-ci/travis-ci
https://travis-ci.org/