The similarities between social networking and blogging have just been made very explicit. Throughout last year we have talked about how the two sectors of social software are going to converge. A year ago this week, we graphed the overlap of blogspace and a Social Networking Service. Now we have format offering applications, finally, with Typepad generating FOAF files from Friends Lists. Half the barrier has been generating FOAF files with an incentive to maintain them, and all active bloggers have incentives to maintain their blogs. But the other half has been when you have a FOAF file, what the heck do you do with it? Along comes Plink (People Link), that uses FOAF files to create an explicit Social Networking Service that lets you browse and search blogging networks. What's perhaps different is connections are made elsewhere, through conversations on blogs, and then made globally (Googly) explicit. But since FOAFs are most easily generated off of OPML files, there will also be many relationships with media instead of people. Social Networking Service that contains a form of blogging Ecademy also generates a FOAF files, but Typepad also shares its Typepad profiles with Plink. Expect fast growth of this service within the explicit crowd, but not everyone wants to be so explicit, the absence of constraints and bad data will hamper its utility.