Solve and learn about square-dealing clues and cryptic crosswords by Apex, a devotee of Ximenes.
Various cryptic crossword cluing techniques are explained on this site.
Print and play several jumbo (27x27) cryptics by Cullen, or follow his links to other crossword sites.
The Guardian presents a "quiptic" crossword with both quick and cryptic clues. The puzzle can be printed out or played online with java.
This site includes several printable cryptic crossword puzzles and advice for solvers.
This resource for cryptic solvers includes puzzles, books, links, a crossword photo album, and competitions.