1. Software Architecture
2. Single Process Architecture
3. Computer Architecture
4. Client-Server Architecture
5. N Tier Architecture
6. RIA Architecture
7. Service Oriented Architecture (SOA)
8. Event-driven Architecture
9. Peer-to-peer (P2P) Architecture
10. Scalable Architectures
11. Load Balancing
12. Caching Techniques

Peer-to-Peer (P2P architecture is an architecture in which a number of equal peers cooperate to provide a service for each other, without a central server. All peers are both clients of, and servers for each other.

I have written a separate trail on peer-to-peer networks, so I will not write more about it in this software architecture tutorial.