album is a free HTML/XHTML photo album and gallery generator that supports themes/skins. You can choose different themes or write your own to get different layouts and styles. It creates all your thumbnails (including directory thumbnails) and descends into directories so you can organize your photos. See the home page for more examples. album is also multi-lingual, with many languages being added all the time. N.B.: The purchase link is provided for donations; the software does not cost anything.
bkmrkconv will convert Netscape's bookmarks.html file into a series of interconnected HTML pages which can be put online. The pages are heavily customizable and examples are included for a Yahoo-like portal. The program is useful for accessing your bookmarks from a remote machine or even just for making your links look prettier.
Checklinks is yet Another HTML Link Checker (in Perl 5). Features include SSI (.shtml) support, direct file reads where possible, HTML 4.0, HTTP 1.1, and aliases and other server options. Other useful but more common features include regular expressions to restrict the URLs searched and results reported, and a detailed verbose report. Checklinks was written with Apache in mind, and you can feed it your srm.conf file to auto-configure many settings.