Annabet -  Especially good for Finnish leagues and Elitserien.

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

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

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

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

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

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

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

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