This is a variation on the suggestion for VFP Tip of the Day. How about adding a VFP Tips section to the KB with no subcategories. The html could be a simple list of just the subject lines with Next 50 and Previous 50 buttons at the bottom. Each item in the list is a link to the actual article.

Then in the lower left frame of this page, put a Tip link that would return a randomly selected Tip from the KB.