Xapian is a search engine library, scalable to collections containing hundreds of millions of documents. It's written in C++ with bindings for Perl, Python, PHP, Java, Tcl, C#, Ruby, and Lua. It is a highly adaptable toolkit that allows developers to easily add advanced indexing and search facilities to their own applications. It supports the Probabilistic Information Retrieval model and also a rich set of boolean query operators. Omega is a Web search application built upon the Xapian library. It can index a Web server's document tree (including HTML, PDF, OpenOffice, MS Word/Excel/Powerpoint/Works, WordPerfect, RTF, PS, etc.), or data exported from arbitrary sources (e.g. SQL databases).
LiteSpeed Web Server is a high-performance, secure, easy-to-use, and Apache interchangeable Web server. It supports HTTP/1.1, SSL, CGI, FastCGI, LSAPI, PHP, JSP, Servlets, GZIP compression, chroot, IP level throttling, connection accounting, DoS attack prevention, and instant recovery mechanisms. With its Apache compatible rewrite engine, .htaccess, and MS FrontPage support, migration is quick and easy. A Web interface is included for administration and configuration. It can be used as a content accelerator, compression proxy, or a security guard running in front of any Web and application server.
Kazehakase is a Web browser which aims to provide a user interface that is truly user-friendly and fully customizable. It supports tabbed browsing, a "remote bookmark" feature (through RSS) in a menu or sidebar, a variable UI to adapt to the user's skill level, and customizable mouse gestures and key accelerators.
A 'honeypot' is designed to detect server-side attacks. In contrast, a 'honeyclient' is designed to detect client-side attacks. Specifically, a honeyclient is a dedicated host that drives specially instrumented applications to access remote servers to see if those servers are behaving in a malicious manner (by compromising the client). Honeyclients can proactively detect exploits against client applications without known signatures. This framework uses a client-server model with SOAP messaging as the primary communication method, and uses the free version of VMware Server as a means of virtualizing the client environment.
Booh is a static Web-album generator. It takes one or several series of photos and videos, and automatically builds static Web pages to browse them, creating thumbnails, etc. It features automatic rotation of portrait images, support for videos, preloading, sub-albums support, themability, a powerful GUI for editing, and more. A companion program, booh-classifier, is a tool for batch deleting/copying/moving around images/videos, and is meant to be used prior to creating a Web-album (or in isolation).
BitNami RubyStack provides a fast, easy way to develop and deploy Ruby on Rails applications. It includes Ruby, Subversion, MySQL, SQLite, ImageMagick, and several Ruby Gems, and will optionally install Apache 2.2 with rewrite and proxy support. It supports Windows, Linux, and OS X, so you can share the same Rails environment on multiple platforms.
Remo is a graphical rule editor for ModSecurity, an Apache security module. ModSecurity is quite difficult to configure successfully. Modsecurity.org advertises a tested core ruleset granting you protection from most known attacks, but this is only blocks traffic known to be dangerous, when it is more effective to block everything not known to be safe. Remo is meant to assist in the difficult task of writing the rules that would correctly describe the requests that are valid for an application.