We have a late-breaking Friday Five today that functions as the best kind of Ask the Experts column. When you need to know the latest and greatest on some of the most prominent social tools in the digerati arsenal, these five sources are the folks to read.
Foursquare
Foursquare’s company blog is updated only a few times a month with information about system upgrades and random musings from founder @dens, to get a more in depth look at the happenings at Foursquare I check out
