Although Google Glass won’t be on sale until 2014 and it will be years before the futuristic technology penetrates the device market far enough for advertisers to invest in its instant and interactive capabilities, Google has just been granted it’s “Pay Per Gaze” patent, so it’s certainly hitting the thoughts of your PPC agency , website designers and webmasters. Adwords was introduced in 2000 and PPC as we know it began in earnest in 2002; a multi-million dollar industry of which advertisers and digital marketing specialists are keen to explore every new opportunity, where each new device and platform translates to just that: a new opportunity. The Google Pay Per Gaze Patent Google’s pay per gaze patent was filed for back in 2011 for a “head mounted gaze tracking device” which would send images from the direction of the wearers “gaze” to a server, that server would identify relevant adverts and charge the advertiser. The patent is not just limited to online advertising but can also relate to advertisements in the users environment which they view and interact with but Google has been a little non-committal about whether it will be implemented at all, inferring that not all patents get developed into products. The patent also suggests the capability to assess a user’s emotional response to an advert and react accordingly. If you’re not prepared to wait for Pay Per Gaze to become a reality, if it does (although if you are a realist it’s only normal to expect Google to want to make a few millions from advertising through the next step in wearable computing) then there are other Pay Per Click alternatives to talk to your digital marketing agency about. For the full news on Pay Per Gaze read more at Mashable and AllGeek.TV . Will it just be Google Glass? It remains to be seen whether Google’s Pay Per Gaze patent will give them a complete monopoly on the head mounted device PPC industry, but there are certainly smart eyewear competitors to Google Glass emerging as Digital Trends reports: Sony Smart Glasses Sony does already produce 3D glasses for gaming, but has filed patents in 2012 for devices capable of transmitting information to others and a pair of glasses with displays for both eyes. Microsoft Glass Microsoft filed a patent in 2011 which included layering information on top of live action events and their other patents have included Xbox and Gaming smart eyewear. Apple iGlass The competitor round-up would not be complete without an addition from Apple, who have filed much more vague patents which suggest they have been researching the area but are more likely to hit the market with an iWatch sooner. The report also includes potential products from lesser-known players and products, with some capabilities already on the market like gaming glasses and those which incorporate digital cameras but which have far less potential so far to send to you running to your digital marketing agency to initiate a Pay Per Gaze campaign. *** Having established his career in digital sales and marketing, Duncan Cumming formed his own digital marketing agency. Along with the running of his business, Duncan spends time writing informative and helpful articles about the different areas of online marketing.