SoundAboutPhilly is a project, funded in part by the Pew Charitable Trusts, to generate podcast tour guide for lesser known areas of Philadelphia, historical tours, and other special topics. According to the website, the podcast tours are given by “real” Philadelphians. The tours are available via downolad or can be streamed from the website. The tours are linked to a dynamic mapping application and other media such as photos.
There are a few projects out there like SoundAboutPhilly, and I think many more will be on the way. It really offers the chance for multiple perspectives about places, and can be really fun and informative even for people who aren’t planning to visit.