Jack Sparrow Costuming
By FAR the most helpful website I found. This site is a complete collection on how to become Jack Sparrow. They have references for every aspect of the costumes, where to buy each piece, or how to make them if you're on a budget like me. Though I wasn't making an exact Sparrow Costume, there was a ton of stuff I used.
Another Great Jack Sparrow Costume Site
I couldn't believe I found two of these, but here is another great site to use when pirate costuming. Also shows references, items for sale, and tutorials.
The Costumer's Manifesto
This site has a TON of information. It can be a tad difficult sorting through it all, but is worth it when you find the perfect article.
More to come