I'm afraid it's terminal!

I like that one.

Rating systems

Just something short on (elo) rating: http://www.ratingtheory.com/

When posting about rating for games, just some nice games of starcraft:

http://www.gomtv.net/videos/638

Also the youtube channels of moletrap, VioleTAK, diggitySC, CholeraSC have some more nice games.

Music and sound

http://lab.andre-michelle.com/tonematrix is something to play around, http://www.hobnox.com/audiotool looks pretty awesome at the first view!

Persistence of intuitive beliefs

At Helen's blog at the cognition and culture is a short article about intuitive vs scientific explanations. Some of the comments posted there are also interesting.

By the way, I included the snap shots feature. For those who dislike it, disabling it is quite easy via the drop down menu at the top right corner of each snap shot.

Futhermore I moved the few german-only postings to a new blog and won't bother readers of this one with more german writings.

Completness and compactness theorems

Nice article with draft of proofs:

http://terrytao.wordpress.com/2009/04/10/the-completeness-and-compactness-theorems-of-first-order-logic/

Osterpredigt Teil 1

Due to the indended nature of this blog, I moved this posting to http://misohuroipensi.blogspot.com/2009/04/easter-homily.html.

Some more ...

Just two links: http://www.openculture.com/ and http://youtube.com/edu ...

[edit] fixed for snap shots