Kizoodle is an online bartering system which has kizoodles as the monetary units. The model is that buyer agrees to buy certain seller listed items at some agreed kizoodle value and the seller uses these units to go buy other things on the site. The domain seems to have a advertisement based model. Trouble is that there is no protection between buyer/seller and most items in this environment are low valued items. Kizoodles only work on that site which is a bottleneck in the network growth. It will be interesting to see how the site evolves and grows.