For programming sites this content will keep your visitors (more than likely programmers) coming back to your site as a central resource of information.
An excellent source of syndicated feeds announcing new Perl jobs available. The feeds are supplied either as a Javascript file (very simple for anyone to impliment) or, as you would expect from a Programming related site, as RSS files.
This large webmaster resource site publishes an automatically updating feed that lists the top 10 resources on the 321Webmaster.com website.
The CodeProject is a developers dream. Each week, developers from all over the globe contribute source code, ideas and help each other with programming issues. Now you can increase the stickiness of your programming or shareware site by listing the very latest entries from this very popular library of valuable information on your web site