Annabet -  Especially good for Finnish leagues and Elitserien.

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SFstats - This site has many leagues covered, including Poland Extraliga.

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Sportarena.sk - They cover 1st period lines and game totals nicely and are regularly updated.

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Eishockey Datenbank - All major European leagues. Rich in features, but it takes some time to find all the stuff.

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Betexplorer - Useful for quick analysis when you need only form table and H2H statistics.

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The-Sports.org - Covers International hockey and some rare to find leagues. Comprehensive H2H stats.

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H2Hstats - As the name says it, site covering H2H stats and team comparisons.

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Coteur - Rather interesting features and great coverage of various leagues.

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SFRp's Archive' - Collection of various results from history of international hockey.