xopus is a browser-based (Mozilla, IE) in-place WYSIWYG XML editor. It works similarly to a word processor, and uses XSLT stylesheets to transform the XML to user-presentable HTML and XML Schema to preserve the XML validity. A commercial version with table, rich text, and enumeration editing is available as well.
xpath2rss is an XPath to RSS scraper. XPath makes a better HTML scraper than regex (the typical solution) because it understands the structure of the document, rather than just treating it as a big string. As a result, xpath2rss is a more reliable scraper, and much easier to use, once you get the hang of XPath.
xtweet360 is a small Perl script to publish your Xbox status to Twitter automatically. The main reason for this is to avoid signing up to yet another Web service and giving them your password for Twitter. xtweet360 publishes your full playing status, including the level you're on if you choose, and has a link to your gamer profile. It's a Twitter authorized app, so it will say posted by xtweet360.
y-notes is a set of lightweight applets and CGI scripts which enables a webmaster to specify points where the website's visitors may leave 'sticky notes'. The notes are kept on the server so that users can retrieve them at a later time and use them as a navigation aid. y-notes are particularly useful in large sites such as tutorials and reference manuals. They can also be used in web pages as a fairly uncomplicated way of gathering user feedback which requires no registration, logins, or passwords.
yaSSL is a C++ based SSL library for embedded and RTOS environments, designed for individuals who prefer to use the C++ language. For a C-based solution, please see CyaSSL. yaSSL supports the industry standards up to TLS 1.2, and also includes an OpenSSL compatibility interface.
Yafig is a LAMP-based firewall rule generator that creates shell scripts for use with Linux netfilter/iptables. The user interface is similar to the FireWall-1 policy editor. Its main features are Web-based host, network, and service management. support for multiple policies with individual password protection, shared objects for multiple policies, support for chains (default and custom), and architecture independence.