Looking for sheet music? I have found Sheet Music Plus to be an excellent source!
If you don’t have a metronome: http://www.metronomeonline.com
Printable notation paper: http://www.blanksheetmusic.net
Looking for a song and need it immediately? Try: http://www.musicnotes.com
Musical Terms Explained: http://www.naxos.com/education/glossary.asp
International Phoenetic Alphabet ( IPA ): http://www.ipasource.com