Hello Juste,
Verry good idea, it indeed generates extra traffic.
I have had a pinterest account (http://nl.pinterest.com/iterateCGI/) for a while now but never had pin boards myself, used to look at things en drop them to my own folders on my PC.
After your post I took some time to make some nice boards and follow you guys on pinterest and also looked more into the hole pinterset thing. It is actually a great source of inspiration and a great marketing tool and a lot more. Saw this helpful video to learn some more (https://www.youtube.com/watch?v=QNd9o_WoaSw)
To my surprise my mailbox floods with pinterest activety now, so I need to uncheck some things in my profile page otherwise the stream is not workable. So I have around 30 followers in about 2 day's now and an amount of activity I cannot follow any more (maybe just let notice come through when someone follows, although I would like to know hoe pins one of my products).
I made a board that includes my own products and linked every pin to my profile page here on CGt. Also some of my Vimeo presentation movies are on the board (this could generate some extra traffic to the vimeo channel as well "which is good for raking over there") (http://vimeo.com/channels/690730) and linked the videos also again over here.
So I try to get linking points out there and back to here and in doing so (hopefully) divert some traffic back to here. Thinking to do the same with Polycount maybe CGsociety and more in the near future. Facebook and Twitter somehow fear me a bit because it demands a lot of interactive attention. And I also find myself more on places where there is art, so I suspect people like me would do the same.
I also use the pinterest boards now for gathering reference materials instead of dragging images to my PC folder, so the collections of my reference material are now also accessible to everyone and serve multiple purposes. (my personal PC folder not so)
And all in all I hope everyone here would make a pinterest account and link to CGtrader and in doing so help make this place the number one community for CGartist worldwide.
Ps. would it be possible to somehow make referral links to products of other fellow CGtraders, so it would give extra incentive to pin other members work to own boards on pinterest?
Have fun,