Trendwatching.com is a free newsletter that reports on "hot, emerging consumer trends and related business ideas." They have a global network of 4000+ trendspotters. You can subscribe to their electronic newsletter for free.
An archive of the posts can be found at: http://www.trendwatching.com/trends/archives.html
W: http://www.trendwatching.com/
Springwise.com is another newsletter from the same group.
"Be in the know! It's a big world, and promising new business initiatives are popping up in each and every corner. Springwise scans the globe for you -- looking for brilliant new business-to-consumer ideas, concepts, innovations and ventures that we think YOU should know about.
Ideas that work. We focus on ideas that have proven themselves in local or regional markets, and are ready for expansion, partnership, franchising or copying. We present these bright new ideas in free, monthly newsletters, which are sent to over 50,000 business professionals in more than 120 countries."
Archived newsletters at: http://www.springwise.com/newbusinessideas/archives.html
You can also become a trend/ideas spotter for them and get points if your idea is published, which leads to gifts.
W: http://www.springwise.com/