The following links will take you to practice tests for the ACT Tests in Reading and English, to Writing Topics for the TOEFL Test of Written English, to multiple choice tests created by Phillip Townsend, and to a site where you can practice your writing skills online.
ACT Writing Test Samples
Dr. Kasper's ENGLISH R web site--This site contains many practice resources for the ACT Reading Test
TOEFL Writing Test Topics--NOTE: You will need Adobe Acrobat Reader installed on your computer to view this file. You can download this program for free at http://www.adobe.com/products/acrobat/readstep.html
The Nuts and Bolts of College Writing
Phillip Townsend's Multiple Choice Practice Tests
Learn How To Write.com