Orchestral Per-Service Database?
Something that I've thought about recently, and in my opinion would be a very good resource to have, would be some sort of living database/spreadsheet of per-service rates for orchestras (I guess mostly in the US, where this model is most active, but could include international examples as well).
A basic idea of what information it would contain:
Name of orchestra
Year contracted (so the database could be updated over time, or even backdated)
Position (section, principal, assistant/associate principal, concertmaster, etc.)
Substitute or Permanent musician
Per-service rate ($$$)
Mileage/Travel reimbursement or Accommodations offered?
Would this be of any interest to anyone? I don't know if I have the technical know-how to make something like this, but maybe someone else does.

The AFM already keeps track of most of this through ROPA! Assuming you're a union member in the US, you can go to the AFM site, log in, and search Wage Charts to get pertinent info on all ROPA and ICSOM orchestras