Open Source collaborative filtering frameworks

Question

I was wondering if there exists any open source frameworks that will help me include the following type of functionality to my website:

1) If I am viewing a particular p

Answer 1

I am researching the same topic, as I'm working on a project to help people decide how to vote on California's complicated ballot measures. Here are some open-source collaborative filtering engines that I've found:

• Vogoo (PHP)
• acts_as_recommendable (Ruby on Rails)
• Mahout (formerly Taste) (Java)

There's also a good overview of these engines here.