The ASX stock exhange has an interesting article on Long term investing using fundamental analysis in the sharemarket.

It is available here

An extract which I thought particularly interesting was :

If you aren't willing to buy shares in a company and forget about them for
the next ten years, you really have no business owning those shares at all. The
simple truth is professional money managers attempt to beat a benchmark such as
S&P/ASX 200 yet the majority do not. Rather the way to create long term
value has historically been to select a great company, pay as little as possible
for the initial stake, begin a dollar cost averaging program, reinvest the
dividends and leave the position alone for several decades.

You should also check out the links in the upper right corner to other techniques for investing so that you can decide what type of investing is right for you. I have tried most of them myself and have found the best technique for me is value investing. I can consistently get 30% plus returns on each trade using this technique.

Good Luck.