I’ve written about Russel Tarr’s extraordinary ClassTools site often (see This Is The Best Web 2.0 Site For ELLs & May Be The Best One For All Students).

He has a zillion of easy-to-use (and with no registration required) tools for creating online content.

Today, he’s added another one to his vast suite of options — this time, it’s a super-simple way to create interactive online crossword puzzles.

I’m adding it to The Best Sites For Making Crossword Puzzles & Hangman Games, which I’ve just completely updated and revised.