Tagging, Folksonomies & Technorati

I have had a look at del.icio.us and followed a trail from a Model T Car bookmark. This led me to a technology site where I watched a video of a car that is being built for blind drivers - not just an electronic car that has pre-set controls, but a car that the blind person can actually drive.....veeerry interesting. I know that I could become addicted to this site quite easily. A different matter when I had a look at Technorati. I found this site more than a little confusing and really don't know what I would ever use it for - maybe I just don't understand the concept. Unfortunately, when I tried to look at Technorati's Popular Section, the message said that it is currently unavailable. My search for "Learning 2.0" in Blog Posts found everything with the word "learning" and also with "2.0" in the blog; same search in the Blog Directory found 0 results; and a click on tags brought up an alphabetical listing of popular tags in the last month and I couldn't even find where to search the tags section for a particular tag such as "Learning 2.0". I clicked on a couple of tags about "Social networking" and found the information quite interesting. Will the old Model T ever catch up with all this new technology? Hmmmmm