Here is another batch of news briefings which could affect stocks on world markets in trading later today.

The following companies should see some movement: Apple Inc. (NASDAQ:AAPL), Citigroup Inc. (NYSE:C), Google Inc. (NASDAQ:GOOG).

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

Apple Inc. (NASDAQ:AAPL)

Apple, Inc.’s (NASDAQ:AAPL) live videocast will begin later today, and it will be the first time in 5 years Apple (NASDAQ:AAPL) will stream a media events live to its users.

But the company is only broadcasting to people with Apple, Inc. (NASDAQ:AAPL) products, meaning Snow Leopard Mac or iOS device like the iPhone and iPad, live.

Some have speculated that Apple, Inc. (NASDAQ:AAPL) is merely testing HTML 5 video streaming capabilities.

Others say Apple, Inc. (NASDAQ:AAPL) wants to test out the server capacity at its new North Carolina data center.

Citigroup Inc. (NYSE:C)

Citigroup Inc. (NYSE:C) announced it will lower the balance requirements at its basic account level as part of a push to get more customers to use Citi for their primary accounts.

Also, at the premium account level, Citigold customers can avoid monthly fees if they meet the balance requirements, which the bank has set at $50,000.

But not all Americans want to have that much cash lying around not generating returns.

Google Inc. (NASDAQ:GOOG)

Google, Inc. (NASDAQ:GOOG) has a good working relationship with California Representative Anna Eschoo, with CEO Eric Schmidt having once described Eschoo as “almost the perfect example of a congressperson” who “understands what we need”.

But in the issue over Internet traffic rules between Google, Inc. (NASDAQ:GOOG) and Verizon, Eschoo isn’t taking Google, Inc.’s (NASDAQ:GOOG) side, saying it could limit consumer choice in the future if companies are allowed to play favorites with internet traffic.

We could see more movement when trading continues for Apple Inc. (NASDAQ:AAPL), Citigroup Inc. (NYSE:C) and Google Inc. (NASDAQ:GOOG).