Multiple pages tend to separate and get lost and editors often don't have the time to read through all the information anyway. If the story is for broadcast, the maximum time that could be allotted for your story on the air would be about two minutes anyway, so don't send six minutes' worth of copy. DO send information that involves real people in the audience served by the broadcaster or publisher. The media thrive on it. DO attribute all quotes and statistics in your news release.
Editors throw away news releases that quote un-named people or offer statistics without a source.
DO send a little trinket of value, if you can. Media editors are notorious collectors of such memorabilia, and they love to feel like they're important enough to be showered with gifts. DO NOT call to ask whether the release was received and whether it will make print or be put it on the air. News editors are busy people. And, too, they don't like to feel pressured to use your story.