The weekly Directions Podcast touches on Cloud Computing in Geospatial. Clearly cloud computing is a buzz word, so it is good to see people delving deeper into the subject matter. Both Joe and Adena did a good job of outlining what cloud computing means and pros and cons of moving toward hosted services and the pay as you go model. Adena nicely mentions WeoGeo as the best example of SaaS GIS.
I highly recommend that you listen to this podcast so you can break through some of the buzz words with SaaS and not sound like these guys below.
cartoon credit: geek and poke