Popular weather data site Weather Underground (Wunderground) has a new version of its Weather Underground API and two things are notable: its former XML service is being phased out in favor of JSON. And it has a very clear pricing structure, though there's a free version for non-commercial projects.
A lot of our readers, like me, are news addicts. The latest news matters to a lot of us, and there are some good new mashups to help us find it. Take, for example, Tweetnews.mobi, which shows you the latest breaking news being tweeted through Twitter in realtime: