Here's a direct link to the Free Application for Federal Student Aid (FAFSA) when you are ready to fill out the form. It is possible to select "estimate only" to get an idea of your financial eligibility prior to filing your taxes. You may want to apply for a PIN number (an electronic signature) first before you attempt to fill out the FAFSA online.
A good resource for scholarship search and financial aid is FastWeb.
College Bound Athletes interested in Division I or II schools should consider registering at the NCAA Clearinghouse.
The following sites were found by Reviews.com. After hours spent researching they have provided the 17 most popular scholarship search platforms: