Perhaps you already have an investment strategy. If so, then start using Stock WatchTower to find stocks that fit your criteria. If not, then there are hundreds of books and websites with vastly divergent strategies. The following are several resources for different levels of investors.
Books & Audio Books
How To Make Money In Stocks: A Winning System in Good Times or Bad, 3rd Edition, by William J. O’Neil, founder of Investor's Business Daily. This is the best book to learn about combining chart patterns with fundamental stock information. It explains the terminology behind the "base" of a stock using the Cup with Handle base pattern. William O’Neil also has other excellent books that you should also read.
One Up On Wall Street: How to Use What You Already Know to Make Money in the Market, by Peter Lynch. Peter Lynch summarizes his approach of finding companies based on useful products and services that you use yourself.
Big Picture Investing, by Peter Navarro, 2003, Audio Book, ISBN 1-4025-4780-3. Peter Navarro also has several print books that you could consider. This audio book provides a system for selecting stocks suitable for finding growth stocks. It emphasizes how the economy is tied to the stock market, understanding the current stock market trend, and selecting stocks in synch with the trend.
Organizations
American Association of Individual Investors. Membership fees are nominal, and they have an excellent website and newsletter to provide information for new investors. They have a second newsletter called Computerized Investing to discuss software and web tools for investing.
Websites
IBD: Investors Business Daily. IBD publishes a daily newspaper and maintains an excellent website. Both contain resources for new and experienced investors with the main focus on growth stocks.