When was the last time you were online and needed a dictionary? Quick, think… I’ll guess it was more recently than you think it is. And the same goes for a thesaurus, too.
Firefox users will already know all about this, because it’s built in as one of the default search engines, but Chambers 21st Century Dictionary and Thesaurus are both available online, and searchable too.
Not enough? Well, they do have a daily Sudoku you can do, a monthly cryptic crossword and general knowledge crossword (requires Flash), and even a crossword and anagram solving Word Wizard.
And of course, should you need the dead tree editions, there’s a bookstore you can order any of the reference books from.