Alternative to BDB. Can be run in network mode with memcached and http interfaces as well as a TCP interface.
Nailgun is a client, protocol, and server for running Java programs from the command line without incurring the JVM startup overhead.
Persist is a Java ORM/DAO library designed for high performance, ease of use and integration.
You give it a class name and a query and it runs the query and maps the object. Exactly how it should be. No voodoo dynamic query creation.
Protocol buffers are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data – think XML, but smaller, faster, and simpler.
A very cool feature of SQLite is the ability to create virtual tables. This allows for querying data outside of SQLite itself yet still being able to join it with regular tables in the SQLite DB.
Merb is a Ruby MVC web framework with a goal of being lightweight. In particular it does not come with an ORM or template language out-of-the-box. It's also fast.
HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications.
Really cool way to visualize a log file. Written in Ruby.
This is a way of getting the complete history of the file in one textual output. It's great for finding a snippet that you suspect existed somewhere in the file's past.
Dynamo is internal technology developed at Amazon to address the need for an incrementally scalable, highly-available key-value storage system.