Good Financial News Sites to Follow for Trading Stocks?

Hello,

I am a software engineer and am in the initial design phase of a stock-bot (i.e. automated trading system using machine learning and lots of other math/science/statistical techniques).

One of the things I would like to be able to do is gather financial news articles relating to the market on a daily bases, and process those. I have found a few (hopefully) good sources of finance news like Yahoo Finance and CNN Money, but I'd just like to know what news sites the experienced traders out there like to get their news from?

Also, if any of you are familiar with building stock bots, any useful input would be appreciated. On the flip side if your answer to this post is that it is impossible or stupid thing to build, please include an intelligent justification for that kind of response (simply just saying it is a bad idea is neither useful nor informative).

Thanks in advance

Mike

PS. All negative responses (i.e. don't try to build a stock-bot responses) that don't contain an intelligent justification for why not (as asked previously) will be assumed to have come from unintelligent people and disregarded :)