Hi! In my tag cloud on my new blog there are a few tags which are doomed to become much much larger than the other ones, since they're more generic. One of them is used on almost (but not quite) every post. This is rather unhelpful for the visitors, since clicking these words (which are of course the biggest and supposedly most helpful ones in the cloud) will quite simply bring them to an equally unordered list of posts, only lacking some articles they may in fact be interested in. Quite simply, the tag cloud now gives a lot of attention to something that has little to no interest in itself.
So, I want to block the handful of categories from the tag cloud. Can I do that? How?