Corporate mainstream in English? Oh, the FT and the Guardian, especially opinions, but, as always, you need to be discriminating in your selection of reading and how to read it (often, between the lines). I usually follow Reuters on the net (and DU of course) for international breaking news. For reports from within Europe, I find sources such as El País (in Spanish), which I read every day together with local (Spanish regional) press, to be better informed than any English language mainstream press. From what I've seen (I also read some French) this is the case with other left-leaning mainstream press such as Le Monde. On the 'foreign policy' level, you could do worse than look at Le Monde Diplomatique
http://mondediplo.com/You read stories knowing more-or-less from what perspective it was written, then you form your own opinion, your own overall picture of what's going on. I refuse to have TV in the house and read a lot: I think that helps, as an antidote to all the down-dumbing bullshit brainwashing.
On the net, from a mainstream, "professional & executive" but fairly objective approach to EU stories, mostly in economics and "high politics", you could do worse than to check out EurActiv
http://www.euractiv.com/en and EuroIntelligence
http://www.eurointelligence.com/ from time to time. Then there's the, even more 'oficialist', New Europe
http://www.neurope.eu/ . To find more sources, this may be a place to start:
http://www.world-newspapers.com/ .
Then there are the Alternative sources on the net, of which there are legion. I haven't come across anything like DU or even KOS that operates at a European level yet (it would be all-but impossible in terms of the very diverse party-politics, except perhaps among Greens, but along broadly ideologically progressive lines it ought to be possible, I think). It would be nice to know if anyone else has? For myself, since I do some anti-mainstream indymedia work, I receive plenty of hints about what might be going on at the more anarchist (which does not necessarily mean violent) end of the spectrum. :) Spanish is probably one of the best languages for this. There are sometimes very relevant articles from a European perspective to be found at
http://wsws.org/At least viewed from here (if I'm not at home in the Canary Islands I'm at home in the barrio of Gràcia in Barcelona), I think I am seeing signs of an 'upwelling' (bottom-up) of political feeling (even if many don't know they are acting politically) that is forming not only a push for a kind of essentially middle-class and bourgeois 1960s-style 'cultural revolution' (essentially, looking for 'better jobs'), but also, at a more gritty level, of modern varieties of 'anarcho-syndicalist' and 'environmental-socialist' movements. The way society is organised, the political and institutional systems in power are being questioned. Where mainstream unions are too cozy with governments and the corporate status quo, more genuinely progressive movements are, fragmentedly, forming. Genuine social revolution is definitely not 'off the table' as economic conditions worsen, imo. Where privatisations, government bailouts and even nationalisations are seen to fail, pragmatic workers' cooperatives begin to look like viable alternatives as a wide range of anti-corporate, anti-bureaucracy, anti-system protest movements come to the fore.
Be aware that, while there are plenty of 'big businesses' and huge international corporations in Europe, the real economy consists of many many thousands of small to middle-sized enterprises, often family-owned and -run, or held and run by a small group of private 'associates'. This is what really holds Europe together, and local, national and intra-European markets are what these businesses mostly serve. Many of these could easily be operated on a more cooperative basis. Since the European internal market is so vital, and even without going into the more ecological, radical socialist and anarchist arguments, I fully expect to see EU barriers progressively raised raised external 'competitors', through socio-economic necessity. Thankfully, imo, many non-Western societies have been able to develop economically to varying degrees, although perhaps not so much socially, during the era of laissez-faire globalisation; era which is coming to an end, it seems to me. There will be more regulated, more controlled international trade, with an emphasis on more local production and distribution. Naturally, what happens in the USA will continue to have a significant, but declining influence, at least until the next deliberately provoked World-Scale War begins as the international oligarchs' neo-feudalist New World Order plans for us all unfold.
Edit: Sorry if this sounds incoherent: I've only just got out of bed on this bright sunny, showery Sunday morning over here on the island (where most of the local politicians and large local (property, construction, tourism services) businessmen are hand-in-glove, corruption and general under-the-table dealing is the norm; and where most 'international' residents are from all over Northern Europe as well as Italy and tend to be quite eco-minded and 'hippie-ish' :) ) which was booming with an over 17% economic growth rate that was spewing cement all over the place, and attracting a high rate of working-class immigration from South America and Eastern Europe as well as Morocco and sub-saharan Africa (often illegally but understandably) as well as from mainland Spain until just recently.