If you work for or serve the Telecommunications Industry in any capacity - I highly recommend this daily eZine from the US Telecom Association.
US Telecom Daily's claim to fame is that they will help you Know what your competition is doing, Spot trends and act on them first, and Stay up-to-date with news, research, and more.
I love these daily information-packed eZines. I save the ones I need, read further about current news that's pertinent to me. Quick and easy info - very helpful if you work in this field.