Bluebooking and Legal Citation: Bluebook Basics: This guide goes in-depth on legal citation, with additional resources on the California Style Manual from Loyola University.
Bluebook Guide: The simple guide goes over Bluebook basics from Georgetown Law Library.
The Bluebook: A Systematic Approach: Introduction: This guide gives helpful hints, and discusses what to do if there is easy rule to follow from the University of St. Thomas.
Bluebook 101: This "Bluebook 101" efficiently laws out differences in the 21st Edition of the Bluebook from Gallagher Law Library.
Bluebook Quick Reference: Abbreviations and How-tos: This guide gives a great reference to the most common abbreviations (shortened versions of names, titles, and words in general) used in legal citation from the University of Akron.
CALI: Citation Form for Briefs and Legal Memoranda: A 1.5 hour lesson from CALI to learn citations for cases, statutory materials, and secondary authorities.
Bluebook Cases and Exercises: A large amount of Bluebook citation exercises from LexisNexis. These exercises also include state exercises.