I discontinued them. They had become too hard to manage and keep updating (when I went through them, at least half were dead, anyway -- and dead links count against us in search engines, google ratings, etc). And with the evolution and improvements in search engine technology, I felt they were an outdated feature of the site I no longer wanted to expend energy on. Still working on a complete redesign of the site, though -- new design will be modern, vastly easier to main (static content, anyway ...), and simpler to navigate. But change is difficult for some people, so when I roll it out, stand by for much wailing, gnashing of teeth, death threats, blah, blah, blah ...
By the way, I am eliminating many of the Tech Tips, too.
Just warning you.