Are you a gisuser or perhaps a friend of GISuser? If so then check out this cool Google mashup that we stumbled accross. Frapper (friend + mapper) is a social networking tool that lets friends join an informal group and each member is provided with a pushpin showing their location. Add a picture, your location and a short message. Kinda fun... you can check out the GISuser Frapper Here
The company behind frapper is Rising Concepts... To date the app seems pretty simple and doesn't provide much functionality, however, adding a few features would make this networking tool quite slick. I'm looking forward to seeing where they go with it.
After one day several friends have registered with the GIS user frapper... feel free to join up and connect with other geospatial professionals.