This article talks about ways teachers are trying to incorporate cell phone usage in class in a positive way. There are some great examples in this article--
This article provides a number of new tools, but also explanations regarding their practical usage in any classroom. Newer ones include Ipiccy, Easel.ly, Infogr.am, InfuseLearning, BigHugeLabs, SignGenerator, Delivr, Aurasma, TheNounProject, and WeVideo. Others that are more commonly known are: Padlet, Thinglink, & PollEverywhere