There are a host of duff sites like www.auditions.com which purport to be 'Auditions Listing' sites but are just cheap Click Thru money makers.

Are there any genuine web portals where quality professional and/or amateur/semi-pro auditions and open casting call notices are posted? (Regional, National or International)

Hey Stage-7,

Guess you will have to judge the sites for yourself. Here are some:

so and