In the media, we so often hear of the housing bubble, which has ultimately collapsed but yet continues to wreak havoc  in  a seemingly endless spate of foreclosures. We've also heard references to the super-inflated tech bubbles i.e. technology bubbles of the late 80's and early 90's. What actually are bubbles anyway?  Joseph Plummer enlightens us concerning this very topic in his very informative and easy-to-understand 10 minute podcast. Have a listen.