Since Plaxo launched its Plaxo Pulse service it has seen another surge in its growth. The last time Plaxo published its numbers was in 2006 when it reported 15 million active users after it doubled its userbase within 6 months. Since then it has launched its popular Pulse service and the first live OpenSocial implementation.
Last week John McCrea (vice president of marketing for Plaxo) contacted me with an interesting tidbit of information regarding the growth of Plaxo Pulse. It seems that in terms of adding new Pulse users the Netherlands has the highest growth rate of all countries. Dutch Pulse pageviews jumped from 2% of total to 6% of total in one week. As you can see in the graph here, it is highly likely that Dutch users will overtake the UK to become the second-largest userbase outside the US.
Netherlands is light green; UK is dark yellow
There seems to be no special event that led to this sudden growth except the OpenSocial announcement by Google. However, the Netherlands is a very active social networking country with its largest social network (Hyves) adding its 5th million member somewhere this week.