2. I clicked on a song title, but the link is broken. Where are the lyrics?
The Internet is a dynamic medium, and lyric sites do shut down from time to time due to legal problems or other circumstances; that is the downside to my linking song titles to their lyrics on other people's sites. My site has grown so large by now that I seldom check the validity of my links anymore. But whenever I find a broken one, I'll either remove it or replace it with a valid one.
3. What is the title/who sang the song that goes (fill in lyrics here)?
The lyrics won't ring a bell to me. Like I said above, search Google for the lyrics in question, in quotes.
4. Where can I find a MIDI, RealAudio, or MP3 file for a specific song?
MemphisJan's site contains plenty of MIDIs. For RA files galore, try visiting Marybeth or the Wanderer. As for MP3s, Napster and MP3.com have both been in legal trouble in the past, so they may not have what you seek.
5. How can I contact a specific artist (or family of a deceased artist) by e-mail or post mail? Especially, how can I find a living artist's tour schedule?
Some of the official websites listed on my links page include e-mail and/or post-mail contact info for their respective artists/families; living artists' websites also contain tour schedules. If you can't find an official website or contact info for an artist, it means the artist/family don't want you to contact them.