Blogging or social bookmarking about the latest trends in your niches is very beneficial to the marketability of your websites. But finding and "reporting" the latest trends is an art within itself. I am a member of quite a few webmaster forums, and a daily reader on many relevant blogs for my niches. So the first ear I have on a trend will send me off to blog or social network about it. What do you all do to find the latest trends in your market?