Progressive Alliance
Due to the continued presence of nationalistic, corrupt and despotic parties in Socialist International, many prominent members are becoming "observer members" only and have formed a new centre-leftist alliance of purely liberal-social-democratic parties. Apparently the US Democratic National Committee have actually joined this one, due to it's more pragmatic platform. Already the Party of European Socialists has joined, as have global trade unions
Opinions on this new International and the old organisation
I always use Political internationals as the barometer of a parties ideology when looking into them, so this is a big move. It add's to SI, Global Greens, Liberal Intnl, Alliance of Democrats, Centrist Democrat Intl (Christian/Islamic Democratic parties), and Intl Democrat Union (Conservative and Libertarian-Conservative partes). That's not even counting the various commies.
http://progressive-alliance.info/en/http://en.wikipedia.org/wiki/Progressive_Alliance_(political_international)#cite_note-3