...of this software does not rely on artificial intelligence, or AI. Rather the collaborative work is done by pooling the teaching that each person would do alone into one distributed base. It's an example of dumb power. Lots of people teaching a dumb program, but all connected together, producing useful intelligence. The strength of the network is built by the slim bits of information that each member is willing to share. Sometimes that's all it takes.
The web is a hotbed of innovations in R-tech. If you had success in a search and are willing for that information to be spread collectively to others, this lateral relationship can improve the search function for everyone. Sometimes called "collaborative filtering" these kinds of social network functions will spread widely within the web itself, as well as within companies and small work groups.