I've just finished reading the book "Oracle GoldenGate 11g Implementer's Guide" written by John P. Jeffries and published by PACKT. I strongly advise this book for solution/database architects who wants to learn what GoldenGate can do and how, database administrators who are new to GoldenGate and wants to learn the technical details of implementations and GoldenGate experienced administrators who needs troubleshooting, performance tuning details.
The book starts with the consepts of GoldenGate. Who needs it, which different solutions it offer, what technology lies behind it and supported platform & database information. Before starting with configuration details there is a seperate chapter for design considerations in detail. This is really important, because going after a wrong desing, because of poor knowledge, will bring lots of problems and also waste of time. After the desing considerations you'll find very much information about the techical configuration details of GoldenGate.
Another important topic for GoldenGate is the "initial load". Book describes the options we have, with pros and cons in detail. Choosing the correct method for the initial load will bring you performance and time gain.
Advanced topics like configuring GoldenGate for high availability (RAC/ASM/Exadata), efficiently using filters & mapping, data transformation, DDL support, performance tuning and troubleshooting, makes this book a valuable source for GoldenGate users.
You can find detailed information and buy it on this page: http://link.packtpub.com/O7sfch
Thank you John Jeffries and all the team for their effort on the book !!!