The Windows Azure Storage Client Library Reference now contains sample code and remarks for common tasks such as authenticating access to the storage services, creating and enumerating containers and blobs, copying and snapshotting blobs, reading from and writing to blobs, creating and enumerating queues, and processing messages in queues. As an example, you can look at CloudBlob.CopyFromBlob Method for sample code that checks an access condition on a source blob and copies it if the condition is met. The reference documentation and samples are available for both synchronous and asynchronous methods.