What's on the lips of the Adverati today? Content marketing, of course. Here's Gary Vaynerchuk putting his five cents in: Gary Vee doesn't go back far enough in his historical assessment of the field, but hey, when did he ever claim to be an historian? We can look to Joe Pulizzi for that. Pulizzi traces modern day content marketing back to "The Furrow," launched in 1895 by John Deere. Rebecca Lieb, an …