When you've got nothing better to do, take a look at Google Trends. Although it's not scientific, you can gain some insights into trends. Today I was astonished: At last wikis overtook blogs on google trends. When I wrote about the future of Radeox one month ago, blog still overtook wiki as a search term with Google searches. This has changed. People now search more often for wikis than they do for blogs. I still believer Gartner is wrong with their Wiki hype cycle. We haven't even seen the beginning of wikis. The future will be interesting.