[Discover] Accelerate's HR and Rails blog - Super-fast bulk data imports in Rails with ar-extensions http://www.jobwd.com/article/show/31
(rails csv performance activerecord) 
[Discover] Efficient Updates & Data Import in Rails - igvita.com http://www.igvita.com/2007/07/11/efficient-updates-data-import-in-rails/ (import csv rails guide)
[Discover] tuxtina.de » Software http://tuxtina.de/software/ (delicious software mac osx)
[Discover] Continuous Thinking— http://continuousthinking.com/tags/arext (rubyonrails import)
[Discover] Adapter Extensions http://activewarehouse.rubyforge.org/adapter_extensions/ (rails extensions activewarehouse activerecord)
[Discover] Continuous Thinking— http://www.continuousthinking.com/tags/arext/rdoc/index.html (activerecord api rubyonrails database)
[Discover] Efficient Updates & Data Import in Rails - igvita.com http://www.igvita.com/2007/07/11/efficient-updates-data-import-in-rails/ (import csv rails guide)
[Discover] tuxtina.de » Software http://tuxtina.de/software/ (delicious software mac osx)
[Discover] Continuous Thinking— http://continuousthinking.com/tags/arext (rubyonrails import)
[Discover] Adapter Extensions http://activewarehouse.rubyforge.org/adapter_extensions/ (rails extensions activewarehouse activerecord)
[Discover] Continuous Thinking— http://www.continuousthinking.com/tags/arext/rdoc/index.html (activerecord api rubyonrails database)