Here are some helpful links in helping you become a Generation WI$E investor.
Vanguard's Insight - Vanguard, the largest mutual fund company in the U.S. helped pioneer index fund investing and offers information and commentary on investing and personal finance issues. Here, you will find some important info on how to save for retirement, taxes and what the current state of the financial markets mean for long-term investors.
Morningstar's mutual fund section - Morningstar is a large provider of financial information and gained notoriety for engineering the use of "star ratings" to track mutual fund performance. While star ratings have been shown to have little, if any predictive power, the mutual fund section of their website has a wealth of data on most all mutual funds out there. This is a valuable resource to use in looking up fund expense ratios as well as the objective of a fund and its top holdings, among other things.
Bogleheads.org - This site is managed by "disciples" and fans of Vanguard founder John Bogle. There is plenty of outstanding investment discussion on the Bogleheads message board and months worth of investment material to consume on the website's Wiki. The Boglehead philosophy is described here.
Wall Street Journal - While I don't think it's a good idea to actively watch or pay much attention to the Wall Street hype machine on the big television networks or weekly glossy magazines, The Wall Street Journal is a must for financial news. The Journal is the cream of the crop when it comes to financial journalism and their Washington bureau is one of the best in covering the political side of economic decisions. Their economics reports are also top-notch so on the whole, the paper (or the website) is worth reading everyday to stay informed.
Here is where you can purchase The Teenage Investor:
The Teenage Investor (2003, Paperback)
The Teenage Investor (Amazon Kindle version)
The Teenage Investor (Barnes and Noble Nook version)
The Teenage Investor (iBook on Apple's iTunes Store)