Does your site rank lower in Google than you think?

Very cool! I didn't know about that

Why do they have to make 5-minute video of that? What a waste of time. I hate watching video tutorials, reading is much faster for me. Never got the idea with rails screencasts for example.

Agreed, checkout http://asciicasts.com/ for text versions of some of the railscasts

Thank you for the summary. Not sure why I had to watch a video to find this out. (And still didn't watch the video so I don't know what else was discussed.)