Groove wasn't even on the show floor. I lost count of the number of times companies told me they were the leading this or the leading that in their space. I detect novelty fatigue, and a sense that its safer to be in a validated business sector than to be pioneering a new one. No big theme jumped out this year either. In other years, there's been Java, or push, or some other bandwagon people were eager to jump on or distance themselves from.
Content management is back as a category.
Lots of competitors to Microsoft's FrontPage as well, but designed specifically for business environments. These products are more workflow systems than full content management solutions, and are more positioned around the idea that a companies Web site can't be allowed to suffer from the bottleneck of an organizations IT group. The days when internet use was a largely personal affair seem to be ending, at least for businesses, as concern for creating shared Web environments grows. Lots of companies offering to answer this question. The anxiety in the executive suites about how little they know about how customers are using their web site was also in full flower.