Trading actively and successfully requires a huge time investment, luck, and discipline, so there are plenty of drawbacks.
If you are more of a buy and hold investor, Outstanding Investments is one of the top-rated investment newsletters (focused mostly on energy and infrastructure stocks), which, needless to say, has done very well:
I also very much like Steve Sjuggerud’s True Wealth newsletter (interesting investments, like Icelandic Bonds and rare coins, in addition to stocks), from the folks at:
I think that the best news magazine is The Economist, which has a foreign (UK) perspective, and includes business and finance news, in addition to having US and regional sections. If you don’t subscribe or buy it at your local bookstore, you can read some of it at: http://www.economist.com