The massive protests in Toronto against the G8 and G20 summit went almost unnoticed in Europe, except maybe for some pictures of a burning police car and some quick words on 'violent demonstrators' and arrests in some mass media. In reality an impressive program of protests and information was organized by activists, who were countered by massive repression. The turnout was also huge. The activist program started days before the summits. Between June 21 en 24 there were days of resistance around a certain theme (migration and occupation, gender & queer, climate & environment, indigenous struggle) and 25-27 were days of action with the mass demo's on Saturday 26.
An article (in English) based on interviews with three people involved in the organizing of the protests and media-activism, can be found online here:
http://www.globalinfo.nl/Achtergrond/the-toronto-protests-against-the-g20-summit.html