After using ReadNotify email tracing or during a classic email header check on an email you have received from your scammer/newly found internet contact, you may very well get some "location" like this:
LeaseWeb "Netherlands" or "Germany" or the famous "Manassas, VA"
Kaia Global Networks "USA"
SoftLayer "USA" <== very common; added this today (January 2015)
AnchorFree "USA" <== has come a bit out off fashion lately
QuadraNet, Inc "USA"
UK Dedicated Servers Limited "UK"
America Online (IP 172.xx) "USA"
Hetzner AG "Germany"
Portlane Networks AB "Sweden"
RIM (Blackberry) (IP 93.186.xx, 178.xx) "Slough, UK"
OVH SAS "France"
Areti Internet Ltd "UK"
^^These are very popular in Ghana and Nigeria, for the obvious reason of hiding the real location and pretending to be someone else.
These are all among those being added into our "check if IP was used in scams before" tool.
If you get "Mountain View" or "Redmond", don´t look further, it´s the companies Google resp. Microsoft who do not make senders´location-finding email header IP research possible at the moment. Same with "Sunnyvale" at Yahoo, a dead end.