FlexiHub - Connect remote USB devices via Internet or LAN
VirtualHere - Allows USB devices to be used remotely over a network just as if they were locally connected!
Donglify - Easily share USB dongles anywhere with just a couple of clicks.
USB Network Gate - USB Network Gate (former USB over Ethernet Connector) is the software that easily connects one or more remote USB devices to your computer over Network (Internet/LAN/WAN) as if the device was plugged into your own machine.
USB/IP - USB/IP Project aims to develop a general USB device sharing system over IP network.
USB over Network - Share and access your USB devices over local network or Internet.