FluteLand offers a good online introductory flute course

FluteLand.com's introductory flute video series focuses on developing the fundamentals of tone production, intonation, and technique.

FluteLand.com offers excellent basic instruction for the aspiring flutist, with both video lessons and written lesson plans available.  These online lessons address everything one needs to begin playing the flute - including musical notation, fingerings, posture, and tone production.  In addition to the video lessons and online lesson plans, FluteLand.com also offers live video lessons with professional flutists.  Additional resources include fingering charts and an online tuner and metronome.