Learn to integrate your SQl developer with open source version with Oracle Sql developer
Use the powerful GUI to browse your database objects, run SQL statements and scripts, and create, edit, debug, and test PL/SQL code in a highly productive environment with new book from Oracle SQl developer 2.1

N-Way Replication with New Oracle Streams book from Packt
N-Way replication takes the concepts for setting upa single-source configuration and applies it to a multi-master, or N-Way Replication environment configuration. Planning for N-Way replication starts with conflict resolution. Working with your business units is a must and setting and managing expectations needs to be done before any discussion of implementation. The use of Use Case scenarios driven down to transactions then to tables involved in those tansactions is one method to promote discussions with business units.