For years I debated the value of tagging my resources. I knew that it would be a lot of work and wasn't sure it was worth the effort. I finally decided to take this on as a project and over the past number of weeks I have tagged all of my resources (currently close to 8,000).
Now that I have completed this project I am very pleased with the results as this makes my library even more usable. I realize that tagging isn't a good fit for everyone but perhaps my encouragement may help some to undertake this valuable project.