My beta app of the week is Banjo. While on my unwired from work vactation, I heard that it was a new layer you could put on top of your social networks.  Here is what Tech crunch had to say:

"Banjo, for those unaware, is a new social discovery service which reveals the social network present at any given location at a particular time. To be clear, it’s not another social network, it’s a layer on top of social networks. With Banjo, you don’t have to create a profile, add friends or collect followers, or perform any of the other typical social networking behaviours.

Now, you can enter in any address supported by Google Maps in order to discover that location’s hidden social network, whether the location you seek is a city, a street address or even the name of a local business.  

There are certainly some use cases for this feature that will appeal to mainstream users – perhaps you’re curious what people think of tonight’s concert, for example, or what people at a conference are posting pictures of or are tweeting about."