Some of my favorite sites for singers and music lovers:
IPA Source: IPA transcriptions and word-for-word translations of songs and arias
Aria Database: Information, translations, and MIDIs of famous opera arias for singers and music lovers
Ricci Adam's Musictheory.net: Free online music theory lessons and quizzes
Classical Singer: The premier magazine and online gathering spot for the classical singer community
Capitol Music Center: Serving music lovers in Seattle and beyond since 1919
TIS Music: Vocal and piano music, CDs, and books for classical, opera, Broadway
Classical Vocal Reprints : The largest selection of solo vocal sheet music in the USA
Every Note: Piano, violin, guitar, flute, chamber and vocal sheet music downloads for purchase
Sheet Music Plus: World's largest selection of sheet music, scores, songbooks and guitar tabs
Seattle Opera: Information about upcoming productions and more
The Esoterics: Home of Seattle's most innovative choir
Puget Sound Concert Opera: Dedicated to performing operas concert-style with piano in small, intimate settings
Zazou: Seattle based players of Euro-Jazz, Gypsy Swing, French Musette, available for private and public bookings
Jeannette d'Armand: Outstanding vocalist, voice-over artist and teacher
Melyssa Rice: Operatic singer and amazing voice teacher
Music Center of the Northwest: Seattle's premiere community music school, serving students of all ages and abilities
Geoff Johnson Photography: Gifted and versatile photographer based in Omaha, Nebraska