tedster - 11:58 pm on Dec 26, 2008 (gmt 0)

I only have information from a small handful of cases, but it seems that this kind of change can take as much as 4 to 6 weeks. Even then, it wasn't like the sites involved came into great rankings, but at least they started to show up.

I guess there is a lot of complexity to geo-targetting and changes are not like simply throwing a switch.