The blog is fine. Another one with lessons for beginners is tony morris blog .
There are good introductory videos on parleys, on infoq and to be found on the main page from scala.
I would start with a mix - video is entertaining and makes hungry, take the short reference and online pdfs, as well as the blogs, and look for the '99 scala problems'. Try to solve problems, and reread your material if you get stuck.
Practice, practice, practice. Start small projects. Read here on SE, read blogs, the mailinglist. Get two or 3 books and study them in depth. Always: practise.
Since @Synesso got 3 up-votes for claiming, that Tony's blog isn't useful for beginners, I thought why this is a popular belief, and came to the opinion, that the older posts, more addressed towards beginners, need some popularisation, so I do you a favour and give precise links, and assert you, that I enjoyed them as a beginner. Now you're in the dilemma to believe me, or to think that I'm a genius. But sadly, I'm not. ;(