1. Tom Cobb’s venerable Lex Tutor now has a mobile interface
2. Collins and Merriam-Webster both provide free online dictionaries
3. The University of Texas at Austin provides a wide selection of free handouts (PDF) for teachers of English language writing
4. Calibre is a comprehensive e-book manager and converter
5. OmniPage and ABBYY FineReader are powerful OCR (Optical Character Recognition) applications
6. The Lexical Research Foundation is “a not-for-profit organisation to promote excellence in lexical and vocabulary acquisition, description and pedagogy.”
7. AntWordProfiler, Web VocabProfile, Range, and P_Lex (PDF) are tools for profiling lexical sophistication of a text, i.e. the proportion of advanced (rare) vocabulary…
8. …while TextInspector can be used to measure lexical variation, i.e. the proportion of word types to tokens
9. Michael Covington has developed a number of algorithms and tools for analyzing texts, including Moving Average Type-Token Ratio (MATTR)
10. Paul Nation’s book, What You Need to Know to Learn a Foreign Language, is available as a free PDF download…
11. …as are all his Vocabulary Size Tests (VST)…
12. …which can also be taken online via Tom Cobb’s site
13. Laurence Anthony’s WebSCoRE is “a free, parallel concordancer with a specially developed bilingual pedagogical corpus”
14. Paul Meara’s Lognostics website “is designed to provide access to up to date research tools for people working in the field of Second Language Vocabulary Acquisition”
15. Vocabulary Learning and Instruction (VLI) is an open access international journal for research relating to vocabulary acquisition, instruction, and assessment.
16. Showbie is a great tool for keeping digital portfolios of students’ work
17. Coh-Metrix is a system for computing computational cohesion and coherence metrics for written and spoken texts
18. Lexile Analyzer can be used to compute the complexity of a text, including sentence length and word frequency
19. Cambridge University Press’s English Vocabulary Profile (EVP) “offers reliable information about which words and phrases are known and used by learners at each level of the Common European Framework (CEF)”
20. The CEFR-J website provides a series of “can-do” descriptors specifically for English language teaching contexts in Japan.

If you found these tips useful, why not check out the new version of my book, which has been revised, updated and expanded for 2019: 50 Ways to Teach with Technology