Amazon (AMZN) roundup: 1) ITG Research says its checks indicate Amazon's Q4 revenue is tracking to $22.4B-$22.7B, above a $22.2B consensus. Black Friday/Cyber Monday figures seem to have raised expectations. 2) The U.K. parliamentary committee investigating Amazon's tax payments has published local sales figures. Amazon had £3.35B ($5.37B) in U.K. sales in 2011, and a profit of £74M ($119M). 3) Baird forecasts Amazon Web Services (previous) will generate $1.5B in 2012 sales; others have forecast $2B.