Everyone knows how important SAT and ACT scores are. Everyone studies for them somewhat. Here are two sites I used that was the most helpful, and best of all--they are both FREE.
This is my favorite test review site of all time. It's free and they provide personalized review help for the SAT and ACT and GRE. You create and account and they have tutorials and practice problems. Instant feedback on your progress. Very user friendly interface. They also have a helpful Vocabulary Builder. I suggest that if you are preparing for any of the tests, sign up now and start working.
This is another good site with lots of information, the only downside is that printing out their stuff is the best way to use the site so if printing is a bother then this site will not be the easiest to use. However, everyone should look through the site to see if they could find something useful.
They create and administer the SAT.
If you know any other great sites, let everyone know.
I am not guaranteeing that these sites will be better and a expensive review program but if you have the dedication and discipline, these sites are great resources for helping you to improve so maybe you can save a few bucks.