My comments re: LinkedIn. I registered two years ago and have invited several of my local colleagues to join my contact list. I really use it as a mechanism to help locals get into the global marketplace. I am a member of several international forums and interact in these forums much more than LinkedIn. I find it to not be as "international" as purportedy claimed.
As an example, I am developing a Cultural Tour to Ghana scheduled for mid-2007. I used LinkedIn Search to find specific contacts to alert them. I have much more success with other forums for this example. Details can be found at www.mbcglobal.org/Service-Tours.html.
As a note, one of my contacts on LinkedIn, David Biskner is giving a presentation on LinkedIn at Automation Alley HQs in SE Michigan in the next week or two. He is looking forward to "introducing" LinkedIn plus of course, his own company.
I must also say that I include the SUN community a very effective business/networking forum with opportunities for international contacts.
Have a great and successful day.