| Site | Launched | Audience | Feature |
| Crowdstorm | September 2006 |
Shopaholics. The site lists everything from toasters to video games. | Constantly updated rankings of the most recommended products |
| Kaboodle | February 2006 | Electronics and collectibles are particularly popular. | Allows users to assemble photo slide shows and collages of their favorite products |
| Stylehive | March 2006 | Fashion fans | Lets users track the buying habits of their favorite recommenders |
| ThisNext | August 2006 | Fans of high-design products and unique retailers | An "interestingness" algorithm that ranks product recommenders |
Published on: Feb 1, 2007
