thelostagency - 6:22 am on Sep 23, 2010 (gmt 0)

nope its been happening for well over a year but another factor might be if you Group is set to public or anyone can join.

The SEMPO APAC page is indexed and shows up highly for "sempo apac" [google.com ] so you can assume that the social weight might have some importance as it seems to be a factor of users, posts and sharing of content in the group
[facebook.com ]