Heroes of Might and Magic IV

• maps4heroes.com - A huge collection of high-quality player-made maps. See also my own map archive.
• heroesofmightandmagic.com - The official website, with descriptions of every hero, creature, spell, artifact, and building.
• Heroes Community Forums
• Ever wonder how many berserkers it takes to beat a phoenix? My Creature Ratings page has got you covered.

Music

• Egoriy Veshniy's cover of "Hope" and "The Mountain Song"

• Dryante Zan's cover of "Floating Across Water"