Nice little article on how to let search engines better understand who you are... and by you, I mean your website.
I remember when I first started to learn html all you needed was your meta tag and bam Google knew you.
Now this stuff speaks alot closer to the semantic nerd in me and I like it alot. Hopefully can come in handy in the future.
The tool looks like the most helpful thing so bookmark this website:
What is a Rich Snippet? A snippet is the lines of text that you see under each search result. They are designed to give searchers an idea of what’s on the page and why it’s relevant to their search.