What’s Past is Prologue
Book Trust’s excellent “Writing Tips for Teens” with links to next steps https://www.booktrust.org.uk/books-and-reading/tips-and-advice/writing-tips/writing-tips-for-teens/
Scottish Book Trust’s opportunities for young writers http://www.scottishbooktrust.com/writing/opportunities-for-writers/young-writers
Teen Ink www.teenink.com/
Wattpad www.wattpad.com
Underlined Writing Community www.getunderline.com/
Author Teresa Funke also maintains a useful list of resources here: https://www.teresafunke.com/resources/teen-writing-resources/
One Teen Story www.one-story.com/index.php?page=ots
Go Teen Writers: Honesty, encouragement and community for writers http://goteenwriters.blogspot.co.uk/
Forum for teenage writers www.youngwriterssociety.com
Tips for teenage writers www.dailywritingtips.com/writing-resources-for-teenagers/
24 magazines that publish writing by children and teens https://authorspublish.com/24-magazines-that-publish-writing-by-children-and-teens/
40 of the Best Websites for Young Writers http://study.com/articles/40_of_the_Best_Websites_for_Young_Writers.html
Author and poet Laura Dockrill’s “8 Top Tips for Young Writers. I’d change No. 6, “Write what you know,” to “Write what you’re passionate about,” but these are all very useful guidelines to consider. https://www.booktrust.org.uk/news-and-features/features/2023/may/everyone-has-a-story-to-tell-8-top-tips-for-young-writers/
Very good advice here (if a little harshly honest) by respected writer and blogger John Scalzi whatever.scalzi.com/2006/04/27/10-things-teenage-writers-should-know-about-writing/