The Bad Rash seems like one of the better English blogs in Barcelona. Most posts have some meat to them, and it’s nice when a blogger shares your political/cultural prejudices. He also has links to plenty of other expat blogs in his sidebar.
Of these, From Barcelona concentrates on culture and expat life. Drink Barcelona is a bar guide, unsurprisingly. Catalonia Blog and South of Watford cover politics. This blog mixes Spanish and Scottish politics; this one concentrates mainly on Catalan nationalism.
Of the international networks, Metblogs and [Gridskipper](http://gridskipper.com/tag/barcelona) are absent, but [Unlike](http://barcelona.unlike.net/) and [Spotted by Locals](http://www.spottedbylocals.com/barcelona/) make up for that.