Usually every site posts its own news and press releases. They can be found at different locations like the bottom of the main page, under News, in the About Us page, or Media page.
You can pick up Money Casino’s news here:
http://www.Money-Casino.com/Press_Release/index.html
Other examples:
http://www.bodog.com/press-releases/
http://www.partypoker.com/news/
http://www.fulltiltpoker.com/news.php
http://www.celebpoker.com/news.asp