Here are some useful sites and articles. If you would like to contribute more of the same, please use the comments section to do so. Many of these I picked up from IndigiMusic.

TIN – Taxpayer Identification Number: Obtaining a U.S. Taxpayer Identification Number or TIN if you live outside of the U.S. but working with a U.S. based company. More here…

Keeping Track Of Your Music: How do you keep track of your submissions to the various music libraries and projects? Who accepted and who rejected? More here…

U.S. Copyright Office

Performing Rights Organizations – U.S.

BMI
ASCAP
SESAC

Educational

“The Independent Artists Guide To Pricing Music”The price is $9.99 but I found it very informative. I have no financial interest in this. Just good info.

Film Music Magazine Knowledgebase

How Music Royalties Work

Video: Taxi interview with Matt Hirt – Earning Your Living with Film & TV Placements
Part 1, Part 2, Part3, Part4, Part5, Part6, Part7

Taxi article: “Music Libraries – So What’s The Big Deal?”

Article from Nervous Records Cyf: Mechanical Income

Free samples for composers – Loops, Hits and Multis: www.musicradar.com