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Dive into a collection of past posts and rediscover timeless content.
How TOEFL tutoring is structured across Preply, italki, and Wyzant

How TOEFL tutoring is structured across Preply, italki, and Wyzant

And whether the three biggest online marketplaces are actually where the TOEFL prep market lives.

May 14, 2026

No More Secrets

No More Secrets

Weekly data and analysis on the global English-teaching market — what's being paid, who's paying, and where the work is moving.

May 11, 2026

Chalk Index

Weekly data for ESL teachers reskilling in the AI era. What buyers pay. What skills are emerging. Where the work is moving.

© 2026 Chalk Index | Teaching in the AI Economy.
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