The best way to slow the normal progression of useful applications of intranet is to form too many large committees . One or two committees with strong leaders immersed in the technology and the vision of the technology is needed. Architecture and selecting best applications are important, but don't confuse drawing boxes on a flip chart and forming a committee to select application standards with action to build your intranet. Action is seeing something on your intranet employees can use to be more productive. Wait for senior management to lead the charge.
Most senior managers are too busy to browse the web.
You have to go to them and give them a bulletproof demo of the technology and a business case. Then the light bulbs will go off. It takes one of two champions at the top to get the ball rolling. In some organizations, you need to aggressively recruit the best champions . Get discouraged when momentum slows.