IP Address to Country - (and external service used where noted).
- IP to Country - http://ip-to-country.webhosting.info
- GeoUser - http://www.maxmind.com/app/geolitecity
- Register Country - ?
- IP-based Determination of a Visitor's Country - ?
- Hostip - http://www.hostip.info/
- Ad GeoIP - http://www.maxmind.com/app/ip-location
- GeoIP API - GeoLite Country
- Visitor Info - Collects, stores and displays geo info about anonymous visitors. Uses http://ipinfodb.com
Doesn't actually look it up anywhere, but stores internally:
- Country code - depends on Site Country