A few months ago I posted about the MapCite Excel Addin which you could get a free trial for. They have since made this freely available. They have a more advance pro version also available which you can purchase. I would definitely recommend checking the free version and if you like it take a look at what the Pro version has to offer. I’ve used their original trial version many times as it makes quick work of geocoding and rendering a set of addresses on a map without the need to write any code. You can get access to this free add in here. In addition they are also offering a free web version which you can use to share your excel data on an online map (using Bing Maps of course).