Learned about all kinds of things at WordCamp Philly today, but a very important one is a future change to how browsers will address HTTP as opposed to HTTPS. The takeaway from this was that it's really important to get SSL certificates for any websites you have ASAP - even the ones that don't have an e-commerce component - because browsers are going to start throwing up ugly warning messages for HTTP. There are lots of considerations here - Andrew Nacin, who gave the talk about these issues, will be posting the slides somewhere. I'd check Twitter first.