* The official websites of the exam boards. For example, the AQA website has mark schemes for GCSE exams from 2002 onwards, and the CIE website has mark schemes for IGCSE exams from 2000 onwards.
* Websites specifically dedicated to providing mark schemes for past exams. Some popular sites include:
* [Past Papers](https://pastpapers.co.uk/)
* [Exam Solutions](https://www.examsolutions.co.uk/)
* [The Student Room](https://www.thestudentroom.co.uk/)
* [Tutor2U](https://www.tutor2u.net/)
* Online libraries and academic databases. Some libraries and databases provide access to mark schemes for past exams. For example, the British Library offers access to mark schemes for GCSE and IGCSE exams from 2005 onwards, and the JSTOR database provides access to mark schemes for selected exams.