WOW! What a great list of ACT test prep resources! Wish I had known about all of these sooner!
McGraw-Hill: Practice Plus Online ACT prep that includes practice tests!
Semicolons, Colons, and Dashes on the ACT - Kaplan Test Prep
▶ Best ACT Science Prep Strategies, Tips, and Tricks - 3 Steps to Raising Your ACT Science Score - YouTube
ACT English Test Prep / Grammar, Usage, and Rhetorical--I don't know about the writing...i hope I don't have to do it tho...
Best ACT Prep - YouTube More
ACT Prep: Practice Tests and Flashcards in Math, Science, English, Reading and Writing by Varsity Tutors
The 31 Critical ACT Math Formulas You MUST Know
10 Must-Know ACT Math Tips - Kaplan Test Prep
Best ACT Prep Resources: Practice Tests, Study Guides, Websites, and Prep Books - Quesbook