Dublin Core, Micro Formats, Geo Meta Tags

Hello there Sitepointers.

I have a small issue with SEO quake, after conducting some analysis on it I found a few terms which I had no idea even exsited, and I was wondering on the best way to include then on my websites.

The terms in question are:

Dublic Core
Micro Formats
Geo Meta Tags

I found the following videos, but they did not fully explain things as I wanted:

I am more interested on how to implement these technologies. I found nothing for Dublin Core. Has anybody used any of these. I came across SEO Quake from reading the SEO Guide from SitePoint, so I’d love to here some comments.