Platformist – an ugly term – means basicially that like-minded anarchists form an organisation to pool resources and increase effectiveness. The four key areas outlined in the origingal Platform (actually restated, as in some ways they're common sense and are present in Bakunin's time) are having a high level of agreement on prinicples, and tactics (so called theoretical and tactical unity), people taking responsibility for their involvement in the struggle, i.e. carrying out decisions democratically agreed (collective responsibility) and finally organising in a libertarian federalist basis (federalism).
Platformists are also class struggle anarchists. (We described Organise! as class struggle anarchists when we redesigned our paper because it was the simplest most accurate one at hand.) Both groups are quite similar in that we produce propaganda and get involved in campaigns. They don't describe themselves as Platformist though. They'd have syndicalist sympathies (which I do myself) and are a merger between two groups the Anarcho-Syndicalist Federation and the Anarchist Federation Ireland.
I think the E symbol means Equality.(?)
Not sure that there is a general anarchist position on the Catalan-Basque question. Actually this general issue is one where there is probably the greatest difference between Organise! and the WSM as you can guage from debates on this forum and elsewhere (the other area might be in approach to Trade Unions). Though both organisations favour a class based approach towards freedom rather than uniting with bosses of own's nationality. I'm not all that well up on either the Basque or Catalan question to be honest.
Libertarian Communism and anarchism are interchangeable in my opinion. I like “libertarian communism” because it's a postive description of what we're for: liberty and community – our friends! Anarchists started using the word “libertarian” when the word “anarchist” was censored in France around the 1890s. The Spanish anarchists in the numerous insurrections would try to implement “communismo liberatario” before WWII and it was the declared goal of the massive anarchist-syndicalist trade union the CNT.
Anarcho-Syndicalism is where the workers organise in one huge and ultra democratic union in order to make a revolution.
James - WSM

Some general questions about anarchism etc.. which have been bugging me for a while:
(1) - Whats the main differences between a 'Platformist Anarchist Organisation' i.e. WSM and a 'Class Struggle Anarchist Organisation' i.e. Organise?
(2) What does the anarchist symbol of a E in a circle mean, what does it stand for?
(3) What are the general anarchist opinions on the catalan/basque situation and other similar 'struggles' (or whatever you call them)?
(4) What is libertarian communism, is it similar to anarchism?
Cheers Guys,