There are loads and loads of ultra low cost designer pens available in the market, and when ordered in a bulk, the cost per unit along with your logo printing would cost less than half a dollar per piece. You could use these marketing pens for any occassion. Lets say, in a workshop, where you could distribute these with notepads, hotels can give them away while requesting a signature from the guest on bills, give them away in malls, and give a pen to anyone standing in a queue anywhere, it means pure brand promotion.

Pensrus.com offers a wide variety of low cost pens such as Papermate and Bic at ultra low costs, and print your logo on it, keeping the prices of most models under half a dollar. And that makes it a very good idea to use marketing pens to promote your brand or poduct.

It is supposed to be very helpful for bloggers who work with free article sites, but unfortunately, sploggers make the best out of it by stealing content from legitimate and non free blogs and driving traffic for themselves thereby dividing the traffic of the original post author.

Still, it is a good plugin, and I have that installed on one of my multi user blogs.