If you'd like to explore some existing code, there are a variety of samples and existing applications available.
The Communications Workgroup has a list of Open Source OSLC projects (along with their licenses).
If you'd like to explore a basic application that provides OSLC Service Provider resources and UI previews, Vijay Kalangumvathakkal of developerWorks has some simple applications available to download and try out.
Finally, many of the software development kits include sample applications. The OSLC4J component of Eclipse Lyo has a variety of applications:
- a stock quote sample applications
- a Change Management provider
- a Quality Management provider
- an Automation provider
- the aforementioned Bugzilla Change Management adapter
The Lyo Client component in Eclipse Lyo includes additional APIs and sample code that addresses a variety of common OSLC use cases including login, OAuth, service discovery, and queries.
The OSLC4Net project includes sample applications if you favor .NET/C#.