Installing RMagick Ruby gem

Just for a record (because I forgot how when I had to do it again on another server):

* On Ubuntu Hardy:

   1. Install ImageMagick. 

      $ sudo aptitude install libmagick9-dev

      $ sudo aptitude install imagemagick

   2. Install RMagick gem. 

      $ sudo gem install rmagick

* On Mac OS X Leopard (with MacPort):

   1. Install ImageMagick. 

      $ sudo port install ImageMagick

   2. Install RMagick gem. 

      $ sudo gem install rmagick

RubyGems 1.2.0 is released

Just yesterday.
(Announce: RubyGems Release 1.2.0)

Get it by:

wget http://rubyforge.org/frs/download.php/38646/rubygems-1.2.0.tgz

The Wisdom of Crowds

There was an occasion that I mentioned "The Wisdom of Crowds" responding to the other person during a conversation today. I promised him to send a link to it. And this is what I found instead of just sending him a description in a bookstore site.

"The Wisdom of Crowds"