Ranking research seems to be continuously on the table nowadays. In my country academic community came up with [a website][1] that ranks publication forums in scale $1$-$3$. 

What other rankings of publication forums are available in the internet that would be relevant to a mathematician?

(I'm only interested in rankings, not about any discussion about rankings.)

  [1]: http://www.tsv.fi/julkaisufoorumi/english.html?lang=en