Here are several more stock briefings which could affect stocks in trading later today.

The following companies should see some movement: Microsoft Corp. (NASDAQ:MSFT), Google Inc. (NASDAQ:GOOG), Citigroup Inc. (NYSE:C).

Here is a more detailed look at the news that will affect each company when trading continues.

Microsoft Corp. (NASDAQ:MSFT)

Microsoft Corporation (NASDAQ:MSFT) has planned a product promotion that will cost nearly $1 billion.

According to an article by tech blogger Peter Kafka, Microsoft is planning a marketing blitz to the tune of nearly a billion dollars.

In the article, Kafka notes that this promotion is intended to hype up the release of Microsoft’s (NASDAQ:MSFT)

Windows Phone 7 and its Kinect gaming system, which is intended to propel the Xbox 360 platform past Sony and Nintendo.

Google Inc. (NASDAQ:GOOG)

Google Inc. (NASDAQ:GOOG) has hired State Department’s Jared Cohen for its new “Think/Do Tank.”

Jared Cohen, the youngest member of the State Department to date, is now the latest addition to Google Inc. (NASDAQ:GOOG after being hired last week as the director of the new Google Ideas “think/do tank”

The objective of Google Ideas is to think up and try out ideas that address issues at hand, such as counterterrorism, counterradicalism, and nonproliferation. 

Citigroup Inc. (NYSE:C)

Citigroup Inc. (NYSE:C) has enjoyed rising profits as certain balance sheet items are lowerer for the company.

Greg Morcroft of MarketWatch reported that third-quarter net income rose sharply for Citigroup (NYSE:C) as its credit loss provisions fell. In other words, this means that the company expects to have to write off fewer bad loans.

Morcroft also noted that Citigroup’s (NYSE:C) revenue actually dipped though, as some consumer lending weakened.

We could possibly see more movement when trading continues for Microsoft Corp. (NASDAQ:MSFT), Google Inc. (NASDAQ:GOOG) and Citigroup Inc. (NYSE:C).