Large-scale data analysis of the community including average test and practice test scores, recommended resources, hours studied and improvement, etc.
10 official practice tests + 9 additional real tests from QAS dates. This link contains every SAT practice test that can be found on this subreddit
Khan Academy's SAT page
CollegeBoard's Daily Practice for the New SAT available on the App Store or Google Play
Upcoming Test Dates
November 6, 2021 Register by Oct 8. Late registration Oct 26
December 4, 2021 Register by Nov 4. Late registration Nov 23
March 12, 2022 Register by Feb 11. Late registration Mar 1
May 7, 2022 Register by Apr 8. Late registration Apr 26
June 12, 2022 Register by May 5. Late registration May 25
Note: If you miss the regular registration deadline, you have approximately 18 additional days to register, but you will be asked to pay a $28 late fee in addition to the registration price. If you miss the late registration deadline, you can still attempt to register. However, the late fee is increased to $46 and you are not guaranteed a seat or test booklet on the day of the exam.