Database as a Service DbaaS Product Directory

• Cloudant
• Database.com
• EnterpriseDB Postgres Plus Cloud Server
• FathomDB
• Heroku Postgres
• Kognitio
• MongoHQ / mongo machine
• mongolab (beta)
• NuoDB
• Quickbase
• RDS
• Redis To Go
• Scalebase
• ScaleDB
• SimpleDB
• SQLAzure
• Trackvia Cloud Database
• Vertica for the Cloud
• VMware vFabrid Data Director
• Xeround
• Younicycle
• ZeusDB

Source: Database as a Service DbaaS Product Directory « Database as a Service.

LinkedIn Architecture

Software

• Solaris (running on Sun x86 platform and Sparc)
• Tomcat and Jetty as application servers
• Oracle and MySQL as DBs
• No ORM (such as Hibernate); they use straight JDBC
• ActiveMQ for JMS. (It’s partitioned by type of messages. Backed by MySQL.)
• Lucene as a foundation for search
• Spring as glue

Cookies are for Closers: Oren Hurvitz’s Blog » LinkedIn Architecture.

Enterprise PostgreSQL and Oracle Compatibility with EnterpriseDB

SQL Anywhere: Mobile Data Synchronization

Working of a typical mobile database:

Source: Mobile_database – Wikipedia, SQL Anywhere: Mobile Data Synchronization, Exchange and Management Software & Solutions – Sybase Inc.