Introduction: In this podcast we take a look at some of our recent blog content.Gordon: Mike, you recently published a blog titled Web 2.0: RSS Explained. You did not actually describe RSS but referenced some online content that is just excellent. Can you fill us in?Here's a link to a great video created by CommonCraft - a consulting company focused on helping companies and organizations integrate online communities into their businesses.All organizations would be wise to adopt CommonCraft's core belief:    "that, in the future, organizations will rely on their community of customers to remain competitive".Amazon, YouTube and digg are great examples of businesses that not only value their community of users, but have built a business model around that community.In just under four minutes, the video provides a simple, easy to understand explanation of RSS - a technology that I and many other have become dependent on to get our news and information. The video also uses a a really clever presentation method - yet another alternative to the overused powerpoint slideshow.Mike: Gordon, you wrote an interesting blog on Proximity Marketing and the use of Bluetooth devices. Can you fill us in?Gordon: Most of us have a pretty good idea of what Bluetooth is but before I talk about proximity marketing maybe you could give us a quick primer on Bluetooth. Wikipedia defines it as follows:"Bluetooth is an industrial specification for wireless personal area networks (PANs). Bluetooth provides a way to connect and exchange information between devices such as mobile phones, laptops, PCs, printers, digital cameras, and video game consoles over a secure, globally unlicensed short-range radio frequency. The Bluetooth specifications are developed and licensed by the Bluetooth Special Interest Group"."Bluetooth is a radio standard and communications protocol primarily designed for low power consumption, with a short range (power-class-dependent: 1 meter, 10 meters, 100 meters) based on low-cost transceiver microchips in each device"."Bluetooth lets these devices communicate with each other when they are in range. The devices use a radio communications system, so they do not have to be in line of sight of each other, and can even be in other rooms, as long as the received transmission is powerful enough".Simply put - short range, two-way and, up to this point for most of us in the United States, personal device to personal device communications. Many of us have Bluetooth capable cell phones and are using wireless earpieces for talking while driving or with our hands full. Most laptop PC's come with Bluetooth now and allow wireless attachment and sync with cell phones and other devices.Mike: Gordon, how is this technology being used in Proximity Marketing?In other parts of the world it's been a little different. Companies like BlooZone, are using Bluetooth applications to provide "location aware services" such as proximity marketing. BlueBlitz is another good example of one company that is developing some interesting Bluetooth applications. Here's a piece from their website:"With MagicBeamer you can transfer any information or advertisment to a mobile phone or PDA. It's even possible to sell products or create prize games! And all that 24/7, all year long and through walls and shopping windows"."The transfer of the data is done with Bluetooth(TM) technology. Your advantage: no transfer fees of any kind! It doesn't matter, whether you reach 100 or 100.000 customers. No matter what information you offer for download, the transmission is always free".So what you may say - no big deal - it's like sending a text