“Employees are demanding simpler, more intuitive and more “Web” like intranet experiences. [...] A few years ago, employees barely cared about their company intranets. Today, they’re using their intranets so much that they expect them to have the simplicity and usability of Google or Yahoo! Furthermore, in many large companies, the intranet serves as the official face of the company. Companies with unusable and complex intranets are doing a huge disservice to their employees.”
Other trends are the growing importance of rss feeds, ajax and wikis.