Beginning investing: Great place to start with the basics.
Why you need a Roth IRA: This may be your best first investment as a young person.
Save now, retire rich: Invest in your 401k plans and start saving now.
Mutual fund basics: Nice introduction to investing in mutual funds. Note that the minimum investment can be as low as $50 a month.
Low minimum mutual funds: About.com article listing some mutual funds with very low minimum investments. Please be careful where you invest.
Investing podcasts: If you like to listen to podcasts, here are some good ones explaining investing basics.