I highly recommend against using the imagery of the midgard serpent. Click this link for a quick bit of background on the story as I am familiar with it.
Jormungand, the Midgard Serpent
This is not exactly the imagery that I would want to associate with my business.
On a personal note, I have found the use of a globe in logos to be too common, and unless you are careful, you may not be able design a logo that is unique enough to have visitors recognize it. Maybe if you use the globe as a secondary image in your logo, or as part of a composite image, you may have better luck.
Hope this helps.