I once sent an email to skyhook with my Wi-Fi router's MAC address and my address/coordinates, i just got a reply, they showed me an app you can use to better location! just give them:

• Your address
• Your Wi-Fi router's MAC address
• Your eMail

submit that and they'll get it up on the back-end server! soon there will be no need for a GPS! okay maybe there will.

Link to submitting app

same here, routing works tho