As reported by Cerado, the Gartner Group (see the full report in pdf format) has published their 2005 Hype Cycle, from which we see that RSS and corporate blogging are less than two years away as standard corporate capabilities. Wikis are trailing behind on a 2 to 5 years horizon:
The Gartner Hype Cycle is a well know, evolution in time depiction of technology trends:
One thing I can't figure out is why they left out social tagging from their graph...