The Cacheability Engine will check a URL you feed it for several things that will affect a Web cache, including web server clock skew, expires and Cache-Control headers, Last-Modified date presence, validation of LM date, Content-Length presence and more. It makes it easy to see how a cache will treat your content. There are also public engines running, so you don't have to install the software to use it for Internet-available sites.
cgi_buffer is a group of libraries that may be used to improve performance of CGI scripts (and other content generation engines) in some circumstances by applying performance-enhancing HTTP mechanisms that are typically not supported by them. Currently, Perl, Python, and PHP4 are supported. The Python library may also be used as a wrapper around another CGI script.
Wallal is a standalone LDAP-to-Web gateway. It allows you to search, add to, modify, and delete from an LDAP database. It can format entries and validate them upon submission, and the entries displayed are fully configurable. It was designed with a "personal" LDAP server in mind (one that is used primarily as a phonebook). However, it should be reasonably easy to modify it to do more complex operations on a directory.
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.
Why not just use XSLT?
XSLT does this, has many implementations, and from
the looks of things is easier to use. What does
this offer over it? Just curious...
Server vs. Desktop
This highlights what I believe is a key problem in both Microsoft AND OSS's strategies; M$ is trying to take over the server market, and Linux, etc are trying to win a share of the desktop. Neither is necessarily a good idea.
Microsoft needs to increase the number of Windows servers on the Internet before their Web server share goes up; while there are a lot of Win boxes out there, not many are static IP, long-life Internet servers. The FTP, etc servers that you do see are usually here today and gone tomorrow, and therefore won't show up in the surveys.