I think you could safely say that networking is an hype. You have hyves, myspace, facebook etc. For more business/professional network I personally use only one and that's LinkedIn.
I try to keep my network up-to-date and keep track of my profile. Yesterday, my colleague added two new groups Microsoft Dynamics CRM Blogs and especially for Dutch readers Dutch Dynamics CRM Community, feel free to join if you like.
Get linked :-)