| R-U-In? - Exploiting Rich Presence and Converged Communications for Next-Generation Activity-Oriented Social Networking Recent countries visiting this post |  |
 | 5 | United States |
 | 3 |
| R-U-In? - Exploiting Rich Presence and Converged Communications for Next-Generation Activity-Oriented Social Networking Recent countries visiting this post | |
| 5 | United States |
| 3 |