So a couple of weeks ago, I posted the SPJ's Code of Journalism Ethics to disprove Altschull's outdated assertion that no set of ethical standards exist. I thought the SPJ was thorough, until I came across the code of ethics created by the New York Times for their entire staff here: http://www.nytco.com/press/ethics.html#A2.
It is the most thorough code you will probably find anywhere, ever. It is obviously too exhausting to read, but just skimming it will give you an idea. It is probably also good to have as a source for any ethical questions.