It wasn’t too long ago that to get a second display often meant adding a second video card. For notebook users adding a second display was often impossible. When DisplayLink technology came to market adding more displays became much easier.

The latest DisplayLink LCD on the market comes from a Koran company called Nanovision. The company has announced a line of 7-inch DisplayLink LCDs that gets power and connectivity from the host PC over a single USB connection.

A new Sony docking station being made available for VAIOs makes use of DisplayLink technology for USB-enabled displays. It is called the Sony VAIO Docking Station (model number VGP-UPR1) and you’ll find it available now for around $200.

The VGP-UPR1, according to DisplayLink, allows Sony notebook users to connect an analog or DVI display to a laptop using USB 2.0. It supports a resolution up to 1600 x 1200 and works with Windows 2000, Windows XP and Windows Vista 32-bit and 64-bit, including support for the Windows Vista Aero interface.

For most computer users who want more than one display adding a second isn’t that hard if you have a video card that supports dual monitors. Going above a pair of displays requires an additional video card. This can be in the form of a USB adapter or actually installing a second video card into your PC, which can be a hassle.

Thankfully DisplayLink promises to make that difficulty a thing of the past by allowing you to simply connect a second, third, or even more displays via a simple USB connection. ASUS has announced that its new VW223B 23-inch LCD and its VW202B LCD are both DisplayLink Certified.

If you want enough screen space to get your actual work plus YouTube and the other fun stuff you like to read when the boss (or the wife) isn’t around and you can’t afford a big 30-inch LCD Kensington has your back. Kensington has announced its new Dual Display Adapter.

Sure a pair of displays sitting on your desk isn’t as cool looking as one massive LCD, but two displays has its perks. The Kensington Dual Display Adapter connects to your computer via USB and uses DisplayLink technology. Kensington says that up to six displays can be connected to one computer using multiple adapters.