Q:

where can I find an overview of known "multithreading systems architectures" design patterns?

Using C#, I have been doing multithreaded development for about 5 years, and consider myself quite proficient (I wrote my own lock-free queue and task parallel framework before Microsoft made TPF).
However, I find it incredibly difficult to find information on practical multithreaded system design patterns anywhere. There are some good resources on low-level algorithms and collections, but not much on system design.
So to the question, anyone know where this information can be found? 

A:

Parallel Programming with Microsoft .NET: Design Patterns for Decomposition and Coordination on Multicore Architectures
This is a book, I recommend wholeheartedly.
It is:

New - published last year. Means you are not reading somewhat outdated practices.
Short - about 200+ pages, dense with information. These days there is too much to read and too little time to read 1000+ pages books.
Easy to read - not only it is very well written but it introduces hard to grasps concepts in really simple to read way.
Intended to teach - each chapter gives exercises to do. I know it is always beneficial to do these, but rarely do. This book gives very compelling and interesting tasks. Surprisingly I did most of them and enjoyed doing them.

