Dave Elkins

http://www.colourlovers.com/web/blog/2010/03/11/calculating-color-contrast-for-legible-text

http://particletree.com/notebook/calculating-color-contrast-for-legible-text/

http://wufoo.com/

http://wufoo.com/2008/09/16/report-upgrades-and-new-graphs/

http://us2.php.net/manual/en/function.hexdec.php#74092

http://www.barelyfitz.com/

http://www.barelyfitz.com/projects/csscolor/

http://timetobleed.com/garbage-collection-slides-from-la-ruby-conference/

It goes into a lot of details about how ruby allocates memory and how the GC works.  Also, talks about tracking down memory leaks.

http://edgerails.info/articles/what-s-new-in-edge-rails/2010/02/23/the-skinny-on-scopes-formerly-named-scope/

http://www.subelsky.com/2010/02/using-rubys-queue-class-to-manage-inter.html

A good post by Mike Subelsky about Ruby Queues.

http://www.alistapart.com/articles/the-problem-with-passwords/

An interesting article about making password entry a little more user friendly and the hazards.

http://m.onkey.org/2010/2/5/signed-and-permanent-cookies-in-rails-3

http://omgbloglol.com/post/371893012/the-path-to-rails-3-greenfielding-new-apps-with-the

http://www.rubyinside.com/rails-3-0-beta-links-2966.html

http://www.rubyinside.com/how-to-install-rails-3-0-prerelease-beta-2955.html

http://www.engineyard.com/blog/2010/rails-3-beta-is-out-a-retrospective

http://carsonified.com/blog/dev/bulletproof-backups-for-mysql/

Good post about a possible issue with Passenger, Interlock, Cache Fu and Memcached

http://plasti.cx/2010/02/03/getting-passenger-to-play-nice-with-interlock-cache_fu-and-memcached

Rails 3 Scripts have moved find where to find them: http://lindsaar.net/2010/2/3/where-did-the-scripts-go

SafeBuffers by Katz – http://yehudakatz.com/2010/02/01/safebuffers-and-rails-3-0

New Validation Methods by lindsaar.net – http://lindsaar.net/2010/1/31/validates_rails_3_awesome_is_true

rails-upgrade plugin by omgboglol – http://omgbloglol.com/post/364624593/rails-upgrade-is-now-an-official-plugin