This is a long article from the Wall Street Journal (in one of their blogs, so I don’t think its gated) and is a great roundup of what Fed officials have been saying about tapering since March 20:
Tapering Talk: What Fed Officials Are Saying About Winding Down Bond Purchases
‘Tapering’ refers to the potential for winding-back of the $85bn Fed asset purchases as signs emerge of improvements in the US economy.