brightkite_post.rb

require 'rubygems'
require 'activeresource'

class BrightkiteBase < ActiveResource::Base
  self.site = 'http://brightkite.com'
  self.user = USERNAME
  self.password = PASSWORD
end

class Person < BrightkiteBase
end

class Note < BrightkiteBase
  self.site += 'places/:place_id'
end

place_id = Person.find(BrightkiteBase.user).place.id
note = Note.new({:place_id => place_id})
note.body = "This is the note to post!"
note.save