How to find the ip address of a skype user?

theseotools.net/skype-resolver Advanced Skype Resolver with Geolocation Support.

Skype to IP: It'll not only show you the IP, but also the detail such as Geolocation of User IP, City, Region, Country/ Code, Internet Service Provider (ISP), Latitude and Longitude.

IP to Skype: It works as a reverse resolver. You can find the Skype username via searching the IP address.

Email to Skype: If you've an email of the user, but he is not responding to your messages. Then you can get the Skype username of him via using this feature.

Skype to Email: Same goes for this one, it'll give you the email of the user.

Database Lookup: Currently our database has millions of user's record. So, if you've tried all the above and nothing works for you, then you might try this one.