PerLDAP is a set of modules written in Perl and C that allow developers to leverage their existing Perl knowledge to easily access and manage LDAP-enabled directories. PerLDAP makes it very easy to search, add, delete, and modify directory entries. For example, Perl developers can easily build web applications to access information stored in a directory or create directory sync tools between directories and other services. PerLDAP is OpenSource, part of the Mozilla project.
The Apache Traffic Server (TS or ATS) is a modular, high-performance reverse proxy server, generally comparable to Squid. It was created by Inktomi, and distributed as a commercial product called the Inktomi Traffic Server, before Inktomi was acquired by Yahoo!. Traffic Server has been actively used inside of Yahoo for over 4 years, serving billions of requests every day. As of fall 2009, Traffic Server is an Open Source project, and in April 2010 the Apache Traffic Server was promoted to a top-level project of the ASF.