• Agatha Christie (Wikipedia)
  1 Biography
  2 Hercule Poirot & Miss Marple
  3 In popular culture
  4 List of works 4.1 Novels 4.2 Collections of Short Stories 4.3 Co-authored works
  4.4 Plays adapted into novels by Charles Osborne 4.5 Works written as Mary Westmacott 4.6 Plays
  4.7 Radio Plays 4.8 Television Plays 4.9 Nonfiction 4.10 Comics
  5 Television and Movie Adaptions
  6 Video games
  7 Unpublished material
  8 Animation...

• Agatha Christie - The Official Website (agathachristie.com)
  - with the Detectives : Miss Marple - Herule Poirot - Tommy & Tuppence - Other detectives
  
  

• Stories of Detection and Mystery by Agatha Christie and others (Penguin Readers)

• In pictures: Agatha Christie Comic Strip (BBC)
  
  

INTERACTIVE activities :

• Agatha Christie test questions (english-test.net)
  - with Answers

• Agatha Christie Quizzes and Agatha Christie Trivia (FunTrivia)

• Agatha Christie Quiz (triv.net)
  A 15 question Literature quiz. Based on Millionaire, so questions go from easy to hard.
  

Lesson plans :

• Murder Mystery Game
  "Students will...
  (1) explain the process of elimination,
  (2) demonstrate prediction skills, and
  (3) show evidence of comprehension."
  

'And Then There Were None' :

• It’s A Mystery To Me - a unit with :
  - “The Murders in the Rue Morgue” by Edgar Allan Poe
  - “The Red-Headed League” by Sir Arthur Conan Doyle
  - “And Then There Were None” by Agatha Christie
  (cis.yale.edu)

• How much do you know about Mystery Fiction? - a lesson plan (niveau 4ème) :
  Activity 1 : Mystery fiction
  Activity 2 : 'And Then There Were None' (Agatha Christie)
  Activity 3 : Two Famous Detective Story Writers : Sir Arthur Conan Doyle - Agatha Christie
  Activity 4 : Mystery Writers
  Activity 5 : Alfred Hitchcock
  Activity 6 : 'Your House' (Alanis Morissette)
  Activity 7 : A Phone Call
  Activity 8 : 'North By Northwest' Alfred Hitchcock
  (carole.mazzonetto.club.fr)
  

'Secret Adversary' :

• Secret Adversary by Agatha Christie - ebook to download (gutenberg.org)

'The Mysterious Affair at Styles' :

• The Mysterious Affair at Styles by Agatha Christie - ebook to download (gutenberg.org)

VIDEOS :

• Monty Python - Agatha Christie Sketch (You Tube)
  
  

• Agatha Christie: Murder on the Orient Express - Trailer (You Tube)