Maplet - Adding Web Mapping Services to ArcMap

Another Maplet for my blogpost today. This one is about using Web Mapping Services. A Web Mapping Service, or WMS, is a method for sharing imagery across the web. It's a great option for being able to share and make GIS data available for others without having to transfer files. It's pretty easy to use as well.  A WMS is purely raster, so imagery is the best use, although I've seen people publish GIS data this way as it forces a specific appearance on the data - the drawback to that is the data is not available to the user to query against.
  WMS in an open standard and is managed through the Open Geospatial Consortium. The standards are available here.
  Here's the Maplet: