"you're better off on Stormfront discussing how evil brown men are taking innocent white flowers." Infinite Chaos
Al Jazeera's international standing has been waning in the past few years. They've been criticized as being overtly sympathetic to their Arab brethren, especially since the Arab Spring. For example, they've been criticized for focusing only on the atrocities committed by Assad in the Syrian conflict with largely no coverage of those committed by the opposition. These criticisms have come to head since the ousting of Morsi a few weeks ago with the moderates and liberals accusing Al Jazeera of being a propaganda machine for the MB.
Al Jazeera's Awful Week - by Sultan Al Qassemi | Foreign Policy
I think Al-jazeera is just as unreliable as any other modern news source. They inform an audiance that want's to hear a particular line of news. They don't often get caught in a lie, but they are quite capable of turning a blind eye on news they don't "approve" of.