Ruby on Rails tips, tricks and hints for the aspiring rails hero. Here are the quickfire steps to use the acts_as_taggable gem... 1. In your project database, add two tables, tags and tags_[model you're linking to], here's an example sql script: CREATE TABLE `books` ( `id` int(6) unsigned NOT NULL auto_increment, `title` varchar(50) NOT NULL default '', `author` varchar(50) NOT NULL default '', `d