Programming Language Comparison By Code

What are good general language comparison sites that use code samples? I'm not interested in any matrix type of comparisons (wiki or enterprise chart like).

I found

- http://langref.org/ - small practical snippets in popular languages (good but limited)

- http://rosettacode.org/wiki/Category:Programming_Tasks - extensive set or problems, sparse solutions in more esoteric languages

- http://99-bottles-of-beer.net/s.html - A single program in over 1300 languages

- http://www.roesler-ac.de/wolfram/hello.htm - hello world collection, not very substancial

What are other good sites? Does it make sense to increase awareness on less known languages on sites like this? Do people read them or just jump to the next hyped thing?