Run, don't walk, to your favorite local bookstore and pick up a copy of our good friend Doug Karr's new book, "Corporate Blogging for Dummies." Trust us, you need this book. And it's not just because we at Raidious are in the book on pages 126 and 127 (not that we were looking or anything).
So you are now all set up on Facebook, Twitter, and LinkedIn. Awesome! Now there is a new network joining the mix, and it has quickly become one of the big ones: Foursquare. What is it? Where is going?