Will it do any good from an SEO/traffic standpoint to go back and add tags? I've just recently found a good technorati tag generator, so have used it on only two post at thinking-rich.com. Do you know or have a wild guess whether I would see enough return traffic to make it worth my time? Thanks in advance for your expertise, b*** s***, and other comments.
IMO, it all depends on your niche. If the niche is popular, and you post regularly on your blog, you can be successful in driving traffic to your site. However, I don't think there is any need to add to older posts. Just make sure you add them to the new posts.