These days even folks who consider themselves luddites may very well have an e-mail address. That's why it's important to consider where online all the data and information we use on a daily basis is stored, who owns, and perhaps most important, who can access. Fortunately we are joined this week by Eli Pousson of Baltimore Heritage who is eager to share with us more about the open source movement and why he believes it may be invaluable for historic preservation. This is PreserveCast.