Protein Structure Initiative
The Protein Structure Initiative (PSI) is responsible for depositing over 8,000 structures in the protein data bank (PDB). If you are working on a project related to a structure by the PSI then check out the Structure Knowledgebase. This resource has compiled a vast amount of information into a slick search function.
Protein Structure Initiative search
A number of results are produced with my favorite being the experimental protocols through the PepcDBl. Here are the links from the above example:
* PepcDb Summary
* selection
* cloning
* expression
* purification
* crystallization

This organization is very useful and would love to see this type of resource for all the deposited structures.