From The BBC:Al-Qaeda is in its worst financial state for many years while the Taliban's funding is flourishing, according to the US Treasury.
Senior Treasury official David Cohen said al-Qaeda had made several appeals for funds already this year.
The influence of the network - damaged by US efforts to choke funding - is waning, he said.
The Taliban, meanwhile, are in better financial shape, bolstered by Afghanistan's booming trade in drugs.
According to Mr Cohen, the al-Qaeda leadership has already warned that a lack of funds was hurting the group's recruitment and training efforts.
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More News On Al Qaeda's Finances
Al-Qaida losing influence as Taliban thrives, US says -- The Guardian
Al Qaeda hit by financial crisis -- ABC News
Official: Taliban better financed than al-Qaida -- AP
U.S. claims to disrupt al Qaeda funds -- Washington Times
US Treasury:Terrorist Groups Relying More On Crime For Funding -- Wall Street Journal