Looked at Technorati. My search for Learning 2.0 brought up blog posts but no tags or directory. The post had a mix of relevant and irrelevant articles. Some were about web 2.0 and some only brought up the word learning in the blog, so a lot of unwanted stuff appearing along with the wanted.

Week 6 Looked at Del.icio.us. You can add tags to your bookmarked sites - the tags are like subject headings and they help you remember what it is on the site that you are interested in. Useful for study and doing assignments. Bookmarked sites can be seen by others and so they can also benefit from your research.