Learning Tools Interoperability (LTI) is definitely something you’ll want to have in your tool set if you’re managing a Moodle or any other Learning Management System. This nascent tool is incredibly powerful and in my humble opinion is enabling a future that has long been sought: where users can sign on at one place yet access tools, resources and assessments across the web without any additional registration process.
Gavin Henrick (@ghenrick) has some great resources about it already and presented on the topic at this years Ireland/UK Moot. Check out his lead in blog post at http://www.somerandomthoughts.com/blog/2012/04/11/ireland-and-uk-moodlemoot-2012-ims-lti-demo/.
His video (~10 minutes) showcases LTI being used between Moodle and WordPress (very cool) which opens all sorts of doors for WP/Moodle (Moopress?) integration.
Direct video link: http://youtu.be/Hqezqc3ukhM